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Publication: Flora of North America Editorial Committee, eds. 2014. Flora of North America North of Mexico, vol. 28: Bryophyta: Mosses, part 2. 736.

ITIS records citing this publication
 
 Kingdom Plantae
  Abietinella Müll. Hal. -- accepted
  Abietinella abietina (Hedw.) M. Fleisch. -- accepted
  Acanthocladium carlottae W.B. Schofield -- not accepted
  Acroporium Mitt. -- accepted
  Acroporium smallii (R.S. Williams) H.A. Crum & L.E. Anderson -- accepted -- Small's acroporium moss
  Alsia Sull. -- accepted
  Alsia californica (Hook. & Arn.) Sull. -- accepted -- California alsia moss
  Alsia longipes Sull. & Lesq. -- not accepted
  Alsia sullivantii Lesq. -- not accepted
  Amblyodon P. Beauv. -- accepted
  Amblyodon dealbatus (Hedw.) P. Beauv. -- accepted
  Amblystegiaceae -- accepted
  Amblystegiella alpicola (Lindb.) Broth. -- not accepted
  Amblystegiella confervoides (Brid.) Loeske -- not accepted
  Amblystegiella minutissima (Sull. & Lesq.) Nichols -- not accepted
  Amblystegiella sprucei (Bruch) Loeske -- not accepted
  Amblystegiella subtilis (Hedw.) Loeske -- not accepted
  Amblystegium Schimp. -- accepted
  Amblystegium alpicola (Lindb.) Mönk. -- not accepted
  Amblystegium americanum Grout -- not accepted
  Amblystegium brevipes Cardot & Thér. -- not accepted
  Amblystegium compactum (Hook.) Austin -- not accepted
  Amblystegium confervoides (Brid.) Schimp. -- not accepted
  Amblystegium dissitifolium Kindb. -- not accepted
  Amblystegium fluviatile (Hedw.) Schimp. -- not accepted
  Amblystegium fluviatile var. noterophilum (Sull. & Lesq.) Flowers -- not accepted
  Amblystegium holzingeri Renauld & Cardot -- not accepted
  Amblystegium holzingeri (Grout) Grout -- not accepted
  Amblystegium juratzkanum Schimp. -- not accepted
  Amblystegium lescurii (Sull.) Austin -- not accepted
  Amblystegium longicuspis Lindb. & Arnell -- not accepted
  Amblystegium longifolium Wilson ex Mitt. -- not accepted
  Amblystegium molle var. alpinum Lindb. -- not accepted
  Amblystegium montanum Lindb. -- not accepted
  Amblystegium noterophilum (Sull. & Lesq.) Holz. -- not accepted
  Amblystegium polygamum Schimp. -- not accepted
  Amblystegium pseudoconfervoides Kindb. -- not accepted
  Amblystegium riparium (Hedw.) Schimp. -- not accepted
  Amblystegium riparium var. flaccidum (Lesq. & James) Renauld & Cardot -- not accepted
  Amblystegium riparium var. fluitans (Lesq. & James) Renauld & Cardot -- not accepted
  Amblystegium riparium var. longifolium (Schultz) Schimp. -- not accepted
  Amblystegium saxatile Schimp. -- not accepted
  Amblystegium serpens (Hedw.) Schimp. -- accepted
  Amblystegium serpens var. juratzkanum (Schimp.) Rau & Herv. -- not accepted -- Juratzk's amblystegium moss
  Amblystegium subcompactum Müll. Hal. & Kindb. -- not accepted
  Amblystegium subtile (Hedw.) Schimp. -- not accepted
  Amblystegium tenax (Hedw.) C.E.O. Jensen -- not accepted
  Amblystegium tenax var. spinifolium (Schimp.) H.A. Crum & L.E. Anderson -- not accepted
  Amblystegium trichopodium (Schultz) Hartm. -- not accepted
  Amblystegium tundrae Arnell -- not accepted
  Amblystegium varium (Hedw.) Lindb. -- not accepted
  Amphidium Schimp. -- accepted
  Amphidium californicum (Hampe ex Müll. Hal.) Broth. -- accepted -- California amphidium moss
  Amphidium lapponicum (Hedw.) Schimp. -- accepted -- Lapland amphidium moss
  Amphidium mougeotii (Bruch & Schimp.) Schimp. -- accepted -- Mougeot's amphidium moss
  Anacamptodon Brid. -- accepted
  Anacamptodon splachnoides (Fröl. ex Brid.) Brid. -- accepted
  Anacamptodon splachnoides var. americanus Hampe -- not accepted
  Anacolia Schimp. -- accepted
  Anacolia laevisphaera (Taylor) Flowers -- accepted
  Anacolia menziesii (Turner) Paris -- accepted -- Menzies' anacolia moss
  Anacolia menziesii var. baueri (Hampe) Paris -- not accepted -- Bauer's anacolia moss
  Anictangium ciliatum Hedw. -- not accepted
  Anictangium lapponicum Hedw. -- not accepted
  Anomobryum Schimp. -- accepted
  Anomobryum concinnatum (Spruce) Lindb. -- accepted
  Anomobryum julaceum (Schrad. ex G. Gaertn., B. Mey. & Scherb.) Schimp. -- accepted
  Anomobryum julaceum var. concinnatum (Spruce) J.E. Zetterst. -- not accepted
  Anomobryum leptostomoides Schimp. -- not accepted
  Anomodon Hook. & Taylor -- accepted
  Anomodon attenuatus (Hedw.) Huebener -- not accepted
  Anomodon longifolius (Schleich. ex Brid.) Hartm. -- not accepted
  Anomodon minor (Hedw.) Lindb. -- accepted
  Anomodon platyphyllus Kindb. -- not accepted
  Anomodon rostratus (Hedw.) Schimp. -- not accepted
  Anomodon rugelii (Müll. Hal.) Keissl. -- not accepted -- Rugel's anomodon moss
  Anomodon thraustus Müll. Hal. -- accepted
  Anomodon toccoae Sull. & Lesq. -- not accepted
  Anomodon tristis (Ces.) Sull. & Lesq. -- not accepted
  Anomodon viticulosus (Hedw.) Hook. & Taylor -- accepted
  Anomodontaceae -- accepted
  Antitrichia Brid. -- accepted
  Antitrichia californica Sull. ex Lesq. -- accepted -- California antitrichia moss
  Antitrichia curtipendula (Hedw.) Brid. -- accepted
  Antitrichia curtipendula var. californica (Sull. ex Lesq.) Braithw. -- not accepted
  Antitrichia curtipendula var. gigantea Sull. & Lesq. -- not accepted -- giant antitrichia moss
  Antitrichia gigantea (Sull. & Lesq.) Kindb. -- not accepted
  Aplodon R. Br. -- accepted
  Aplodon wormskioldii (Hornem.) R. Br. -- accepted
  Arrhenopterum Hedw. -- accepted
  Arrhenopterum heterostichum Hedw. -- accepted
  Astrophyllum hymenophylloides (Huebener) Lindb. -- not accepted
  Aulacomniaceae -- accepted
  Aulacomnium Schwägr. -- accepted
  Aulacomnium acuminatum (Lindb. & Arnell) Kindb. -- accepted -- acutetip aulacomnium moss
  Aulacomnium androgynum (Hedw.) Schwägr. -- accepted
  Aulacomnium heterostichum (Hedw.) Bruch & Schimp. -- not accepted
  Aulacomnium palustre (Hedw.) Schwägr. -- accepted
  Aulacomnium turgidum (Wahlenb.) Schwägr. -- accepted -- turgid aulacomnium moss
  Barbella M. Fleisch. ex Broth. -- accepted
  Barbella pendula (Sull.) M. Fleisch. -- accepted -- pendulous barbella moss
  Bartramia Hedw. -- accepted
  Bartramia brevifolia Brid. -- accepted
  Bartramia calcarea Bruch & Schimp. -- not accepted
  Bartramia circinnulata Müll. Hal. & Kindb. -- not accepted
  Bartramia crispa Brid. -- not accepted
  Bartramia fontana var. pumila Turner -- not accepted
  Bartramia glauco-viridis Müll. Hal. & Kindb. -- not accepted
  Bartramia glaucoviridis Müll. Hal. & Kindb. -- not accepted
  Bartramia halleriana Hedw. -- accepted -- Haller's bartramia moss
  Bartramia ithyphylla Brid. -- accepted
  Bartramia ithyphylla ssp. rigidula (Schimp.) Kindb. -- not accepted
  Bartramia ithyphylla var. breviseta (Lindb.) Kindb. -- not accepted
  Bartramia longiseta Michx. -- not accepted
  Bartramia menziesii Turner -- not accepted
  Bartramia oederiana Sw. -- not accepted
  Bartramia pomiformis Hedw. -- accepted
  Bartramia potosica Mont. -- accepted
  Bartramia stricta Brid. -- accepted
  Bartramia subulata Bruch & Schimp. -- accepted
  Bartramia uncinata Schwägr. -- not accepted
  Bartramiaceae -- accepted
  Bartramidula Bruch & Schimp. -- not accepted
  Bartramidula carolinae Sharp -- not accepted
  Bestia Broth. -- accepted
  Bestia holzingeri (Renauld & Cardot) Broth. -- not accepted
  Bestia longipes (Sull. & Lesq.) Broth. -- accepted
  Bestia occidentalis (Kindb.) Grout -- not accepted
  Bestia vancouveriensis (Kindb.) Wijk & Margad. -- not accepted
  Brachelyma Schimp. ex Cardot -- accepted
  Brachelyma robustum (Cardot) E. Britton -- not accepted
  Brachelyma subulatum (P. Beauv.) Cardot -- accepted
  Brachymenium Schwägr. -- accepted
  Brachymenium andersonii H.A. Crum -- not accepted -- Anderson's brachymenium moss
  Brachymenium exile (Dozy & Molk.) Bosch & Sande Lac. -- not accepted
  Brachymenium macrocarpum Cardot -- accepted
  Brachymenium mexicanum Mont. -- accepted
  Brachymenium niveum Besch. -- not accepted
  Brachymenium vinosulum Cardot -- not accepted
  Brachytheciaceae -- accepted
  Brachytheciastrum Ignatov & Huttunen -- accepted
  Brachytheciastrum collinum (Schleich. ex Müll. Hal.) Ignatov & Huttunen -- accepted
  Brachytheciastrum delicatulum (Flowers) Ignatov -- accepted
  Brachytheciastrum fendleri (Sull.) Ochyra & Zarnowiec -- accepted
  Brachytheciastrum leibergii (Grout) Ignatov & Huttunen -- accepted
  Brachytheciastrum trachypodium (Funck ex Brid.) Ignatov & Huttunen -- accepted
  Brachytheciastrum velutinum (Hedw.) Ignatov & Huttunen -- accepted
  Brachytheciastrum velutinum var. salicinum (Schimp.) Ochyra & Zarnowiec -- accepted
  Brachytheciastrum velutinum var. velutinum (Hedw.) Ignatov & Huttunen -- accepted
  Brachythecium Schimp. -- accepted
  Brachythecium acuminatum (Hedw.) Austin -- accepted -- acuminate brachythecium moss
  Brachythecium acuminatum var. cyrtophyllum (Kindb.) Redf. ex H.A. Crum -- not accepted
  Brachythecium acutum (Mitt.) Sull. -- accepted -- acute brachythecium moss
  Brachythecium albicans (Hedw.) Schimp. -- accepted
  Brachythecium albicans var. groenlandicum (C.E.O. Jensen) Paris -- not accepted
  Brachythecium albicans var. occidentale Renauld & Cardot -- not accepted
  Brachythecium asperrimum (Mitt. ex Müll. Hal.) Sull. -- accepted
  Brachythecium beringianum Cardot & Thér. -- not accepted
  Brachythecium biventrosum (Müll. Hal.) A. Jaeger -- not accepted
  Brachythecium bolanderi (Lesq.) A. Jaeger -- not accepted -- Bolander's brachythecium moss
  Brachythecium boreale Ignatov -- accepted
  Brachythecium brandegeei (Austin) H. Rob. -- accepted
  Brachythecium calcareum Kindb. -- not accepted -- calcareous brachythecium moss
  Brachythecium campestre (Müll. Hal.) Schimp. -- accepted
  Brachythecium capillaceum (F. Weber & D. Mohr) Giacom. -- not accepted
  Brachythecium cirrosum (Schwägr.) Schimp. -- accepted
  Brachythecium collinum (Schleich. ex Müll. Hal.) Schimp. -- not accepted
  Brachythecium collinum var. holzingeri Grout -- not accepted
  Brachythecium collinum var. idahense (Renauld & Cardot) Grout -- not accepted
  Brachythecium columbicorutabulum Kindb. -- not accepted
  Brachythecium coruscum I. Hagen -- accepted
  Brachythecium curtum (Lindb.) Limpr. -- not accepted
  Brachythecium cyrtophyllum Kindb. -- not accepted
  Brachythecium delicatulum Flowers -- not accepted -- delicate brachythecium moss
  Brachythecium digastrum Müll. Hal. ex Kindb. -- not accepted
  Brachythecium edentatum R.S. Williams -- not accepted
  Brachythecium erythrorrhizon Schimp. -- accepted
  Brachythecium erythrorrhizon var. alpinum Kosovich-Anderson & Ignatov -- accepted
  Brachythecium erythrorrhizon var. erythrorrhizon Schimp. -- accepted
  Brachythecium fendleri (Sull.) A. Jaeger -- not accepted -- Fendler's brachythecium moss
  Brachythecium flexicaule Renauld & Cardot -- not accepted
  Brachythecium frigidum (Müll. Hal.) Besch. -- accepted -- cold brachythecium moss
  Brachythecium gemmascens Müll. Hal. & Kindb. -- not accepted
  Brachythecium glaciale Schimp. -- not accepted -- glacier brachythecium moss
  Brachythecium groenlandicum (C.E.O. Jensen) Schljakov -- not accepted -- Greenland brachythecium moss
  Brachythecium holzingeri (Grout) Grout -- not accepted -- Holzinger's brachythecium moss
  Brachythecium hylotapetum B.L. Higinb. & N.L. Higinb. -- not accepted
  Brachythecium idahense Renauld & Cardot -- not accepted
  Brachythecium jacuticum Ignatov -- accepted
  Brachythecium laetum (Brid.) Schimp. -- accepted
  Brachythecium latifolium Kindb. -- not accepted
  Brachythecium leibergii Grout -- not accepted -- Leiberg's brachythecium moss
  Brachythecium leucoglaucum Müll. Hal. & Kindb. -- not accepted
  Brachythecium mildeanum var. udum (I. Hagen) Mönk. -- not accepted
  Brachythecium nelsonii Grout -- not accepted -- Nelson's brachythecium moss
  Brachythecium oedipodium (Mitt.) A. Jaeger -- not accepted
  Brachythecium ornellanum (Molendo) Venturi & Bott. -- not accepted
  Brachythecium pennellii E.B. Bartram -- not accepted
  Brachythecium petrophilum R.S. Williams -- not accepted
  Brachythecium plumosum (Hedw.) Schimp. -- not accepted
  Brachythecium populeum (Hedw.) Schimp. -- not accepted
  Brachythecium pseudoalbicans Kindb. -- not accepted
  Brachythecium pseudocollinum Kindb. -- not accepted
  Brachythecium pseudostarkei Renauld & Cardot -- not accepted
  Brachythecium reflexum var. pacificum Renauld & Cardot -- not accepted -- Pacific brachythecium moss
  Brachythecium rivulare Schimp. -- accepted
  Brachythecium rotaeanum De Not. -- accepted
  Brachythecium ruderale (Brid.) W.R. Buck -- accepted
  Brachythecium rutabulum (Hedw.) Schimp. -- accepted
  Brachythecium salebrosum (Hoffm. ex F. Weber & D. Mohr) Schimp. -- accepted
  Brachythecium salebrosum ssp. udum (I. Hagen) J.J. Amann -- not accepted
  Brachythecium salebrosum var. capillaceum (F. Weber & D. Mohr) Lorentz -- not accepted
  Brachythecium salicinum Schimp. -- not accepted
  Brachythecium serrulatum (Hedw.) H. Rob. -- not accepted
  Brachythecium spuriorutabulum Müll. Hal. & Kindb. -- not accepted
  Brachythecium starkii (Brid.) Schimp. -- not accepted
  Brachythecium stereopoma (Spruce ex Mitt.) A. Jaeger -- not accepted
  Brachythecium suberythrorrhizon Renauld & Cardot -- not accepted
  Brachythecium subintricatum Kindb. -- not accepted
  Brachythecium trachypodium (Funck ex Brid.) Schimp. -- not accepted
  Brachythecium turgidum (Hartm.) Kindb. -- accepted -- turgid brachythecium moss
  Brachythecium udum I. Hagen -- accepted
  Brachythecium uncinifolium Broth. & Paris -- not accepted
  Brachythecium velutinum var. venustum (De Not.) Arcang. -- not accepted
  Brachythecium villardii Renauld & Cardot -- not accepted
  Brachythecium wootonii Grout -- not accepted
  Braunia Bruch & Schimp. -- accepted
  Braunia andrieuxii Lorentz -- accepted
  Braunia californica Lesq. -- not accepted
  Braunia secunda (Hook.) Bruch & Schimp. -- accepted
  Braunia secunda var. andrieuxii (Lorentz) Thér. -- not accepted
  Breidleria Loeske -- not accepted
  Breidleria pratensis (Koch ex Spruce) Loeske -- not accepted
  Brotherella Loeske ex M. Fleisch. -- accepted
  Brotherella canadensis W.B. Schofield -- accepted
  Brotherella delicatula (James) M. Fleisch. -- not accepted
  Brotherella henonii (Duby) M. Fleisch. -- accepted
  Brotherella recurvans (Michx.) M. Fleisch. -- accepted -- recurved brotherella moss
  Brotherella roellii (Renauld & Cardot) M. Fleisch. -- accepted -- Roell's brotherella moss
  Brotherella tenuirostris (Bruch & Schimp. ex Sull.) Broth. -- not accepted
  Bryaceae -- accepted
  Bryhnia Kaurin -- not accepted
  Bryhnia bolanderi (Lesq.) Broth. -- not accepted
  Bryhnia graminicolor (Brid.) Grout -- not accepted
  Bryhnia hultenii E.B. Bartram -- not accepted -- Hulten's bryhnia moss
  Bryhnia novae-angliae (Sull. & Lesq.) Grout -- not accepted -- New England bryhnia moss
  Bryoandersonia H. Rob. -- accepted
  Bryoandersonia illecebra (Hedw.) H. Rob. -- accepted
  Bryochenea sachalinensis (Lindb.) C. Gao & G.C. Zhang -- not accepted
  Bryocrumia L.E. Anderson -- accepted
  Bryocrumia andersonii (E.B. Bartram) L.E. Anderson -- not accepted
  Bryocrumia vivicolor (Broth. & Dixon) W.R. Buck -- accepted
  Bryohaplocladium praelongum (Schimp. ex Besch.) H.A. Crum -- not accepted
  Bryolawtonia D.H. Norris & Enroth -- accepted
  Bryolawtonia vancouveriensis (Kindb.) D.H. Norris & Enroth -- accepted
  Bryum Hedw. -- accepted
  Bryum acutiforme Limpr. -- not accepted
  Bryum aeneum Blytt ex Bruce & Schimp. -- not accepted
  Bryum algovicum Sendtn. ex Müll. Hal. -- not accepted
  Bryum alpinum Huds. ex With. -- not accepted -- alpine bryum moss
  Bryum amblyodon Müll. Hal. -- not accepted
  Bryum andicola Hook. -- not accepted
  Bryum androgynum Hedw. -- not accepted
  Bryum annotinum Hedw. -- not accepted
  Bryum apiculatum Schwägr. -- not accepted -- apiculate bryum moss
  Bryum archangelicum Bruch & Schimp. -- not accepted
  Bryum arcticum (R. Br.) Bruch & Schimp. -- not accepted -- arctic bryum moss
  Bryum argenteum Hedw. -- accepted -- silvergreen bryum moss
  Bryum argenteum var. argenteum Hedw. -- accepted
  Bryum argenteum var. lanatum (P. Beauv.) Hampe -- not accepted
  Bryum argenteum var. majus Schwägr. -- accepted
  Bryum argenteum var. muticum Brid. -- accepted
  Bryum axel-blyttii H. Philib. -- not accepted -- Blytt's bryum moss
  Bryum badium (Bruch ex Brid.) Schimp. -- not accepted
  Bryum barnesii J.B. Wood ex Schimp. -- not accepted
  Bryum bicolor Dicks. -- not accepted
  Bryum bimum (Schreb.) Turner -- not accepted
  Bryum blindii Bruch & Schimp. -- accepted -- Blind's bryum moss
  Bryum bolanderi Lesq. -- not accepted
  Bryum bornholmense Wink. & R. Ruthe -- not accepted -- Bornholm's bryum moss
  Bryum brachyneuron Kindb. -- not accepted
  Bryum bryoides (R. Br.) Ångstr. -- not accepted
  Bryum caespiticium Hedw. -- not accepted -- dry calcareous bryum moss
  Bryum caespiticium var. badium Bruch ex Brid. -- not accepted
  Bryum californicum Sull. -- not accepted
  Bryum calobryoides J.R. Spence -- accepted
  Bryum calophyllum R. Br. -- not accepted
  Bryum canariense Brid. -- not accepted -- Canary bryum moss
  Bryum capillare Hedw. -- not accepted
  Bryum capillare ssp. erythroloma Kindb. -- not accepted
  Bryum capillare var. torquescens (Bruch & Schimp.) Husn. -- not accepted
  Bryum carneum With. -- not accepted
  Bryum cellulare Hook. -- not accepted
  Bryum chryseum Mitt. -- accepted
  Bryum ciliare Grev. -- not accepted
  Bryum concinnatum Spruce -- not accepted
  Bryum conoideum Dicks. -- not accepted
  Bryum coronatum Schwägr. -- not accepted
  Bryum creberrimum Taylor -- not accepted
  Bryum crudoides Sull. & Lesq. -- not accepted
  Bryum cryophilum Mårtensson -- not accepted
  Bryum curvatum Kaurin & Arnell -- not accepted
  Bryum cyclophyllum (Schwägr.) Bruch & Schimp. -- not accepted
  Bryum delicatulum Hedw. -- not accepted
  Bryum demaretianum Arts -- not accepted
  Bryum demissum Hook. -- not accepted
  Bryum dichotomum Hedw. -- not accepted
  Bryum drummondii Müll. Hal. -- not accepted
  Bryum elegans Nees -- not accepted
  Bryum erythroloma (Kindb.) Syed -- not accepted
  Bryum exile Dozy & Molk. -- not accepted
  Bryum filum Schimp. -- not accepted
  Bryum flaccidum Brid. -- not accepted
  Bryum gemmascens Kindb. -- not accepted
  Bryum gemmiferum R. Wilczek & Demaret -- not accepted
  Bryum gemmilucens R. Wilczek & Demaret -- not accepted
  Bryum gemmiparum De Not. -- not accepted
  Bryum gracile Wilson -- not accepted
  Bryum hymenophylloides (Huebener) Hartm. -- not accepted
  Bryum incrassatolimbatum Cardot -- not accepted
  Bryum intermedium (Brid.) Blandow -- not accepted
  Bryum julaceum Schrad. ex G. Gaertn., B. Mey. & Scherb. -- not accepted
  Bryum klinggraeffii Schimp. -- not accepted -- Klinggraeff's bryum moss
  Bryum knowltonii Barnes -- not accepted -- Knowlton's bryum moss
  Bryum kunzei Hornsch. -- not accepted
  Bryum laevifilum Syed -- not accepted
  Bryum lanatum (P. Beauv.) Brid. -- accepted
  Bryum lescurianum Sull. -- not accepted
  Bryum lisae var. cuspidatum (Bruch & Schimp.) Margad. -- not accepted
  Bryum lonchocaulon Müll. Hal. -- not accepted
  Bryum longisetum Blandow ex Schwägr. -- not accepted
  Bryum ludwigii Spreng. ex Schwägr. -- not accepted
  Bryum marginatum Dicks. ex With. -- not accepted
  Bryum meesioides Kindb. -- not accepted
  Bryum melanodon Brid. -- not accepted
  Bryum microchaeton Hampe -- not accepted
  Bryum mildeanum Jur. -- not accepted
  Bryum miniatum Lesq. -- not accepted -- glossy red bryum moss
  Bryum muehlenbeckii Bruch & Schimp. -- not accepted -- Muehlenbeck's bryum moss
  Bryum neodamense Itzigs. -- not accepted
  Bryum neodamense var. subneodamense (Kindb.) Podp. -- not accepted
  Bryum nitidulum Lindb. -- not accepted
  Bryum oblongum Lindb. -- accepted -- oblong bryum moss
  Bryum obtusifolium Vill. ex Brid. -- not accepted
  Bryum ontariense Kindb. -- not accepted
  Bryum pallens Sw. -- not accepted
  Bryum pallescens Schleich. ex Schwägr. -- not accepted
  Bryum pellucens Hook. -- not accepted
  Bryum pensylvanicum (Brid.) Brid. -- not accepted
  Bryum porsildii (I. Hagen) C. J. Cox & Hedd. -- not accepted
  Bryum pseudocapillare Besch. -- not accepted
  Bryum pseudotriquetrum (Hedw.) G. Gaertn., B. Mey. & Scherb. -- not accepted -- common green bryum moss
  Bryum pulchellum var. atropurpureum Wahlenb. -- not accepted
  Bryum purpurascens (R. Br.) Bruch & Schimp. -- not accepted
  Bryum pyriferum Crundw. & H. Whitehouse -- not accepted
  Bryum radiculosum Brid. -- not accepted
  Bryum reedii H. Rob. -- not accepted -- Reed's bryum moss
  Bryum renauldii Röll ex Renauld & Cardot -- not accepted
  Bryum rubens Mitt. -- not accepted
  Bryum ruderale Crundw. & Nyholm -- not accepted
  Bryum rutilans Brid. -- not accepted
  Bryum salinum I. Hagen ex Limpr. -- not accepted
  Bryum sandbergii Holz. -- not accepted
  Bryum sanguilentum Renauld & Cardot -- not accepted
  Bryum schleicheri Schwägr. -- not accepted -- Schleicher's bryum moss
  Bryum schleicheri var. latifolium (Schwägr.) Schimp. -- not accepted
  Bryum spinosum Voit -- not accepted
  Bryum squarrosum Hedw. -- not accepted
  Bryum stenotrichum Müll. Hal. -- not accepted
  Bryum stirtonii Schimp. -- not accepted -- Stirton's bryum moss
  Bryum subapiculatum Hampe -- not accepted
  Bryum subneodamense Kindb. -- not accepted
  Bryum systylium Müll. Hal. -- not accepted
  Bryum tenuisetum Limpr. -- not accepted
  Bryum teres Lindb. -- not accepted
  Bryum torquescens Bruch & Schimp. -- not accepted
  Bryum tortifolium Brid. -- not accepted
  Bryum tozeri Grev. -- not accepted
  Bryum trichophorum Kindb. -- not accepted
  Bryum turbinatum (Hedw.) Turner -- not accepted
  Bryum uliginosum (Brid.) Bruch & Schimp. -- not accepted
  Bryum valparaisense Thér. -- not accepted
  Bryum veronense De Not. -- accepted
  Bryum violaceum Crundw. & Nyholm -- not accepted
  Bryum viridissimum Dicks. -- not accepted
  Bryum warneum (Röhl.) Brid. -- not accepted
  Bryum weigelii Spreng. -- not accepted -- Weigel's bryum moss
  Bryum wrightii Sull. -- not accepted -- Wright's bryum moss
  Bryum zieri Hedw. -- not accepted
  Buckiella Ireland -- accepted
  Buckiella undulata (Hedw.) Ireland -- accepted
  Burnettia fabronifolia Grout -- not accepted
  Callicladium H.A. Crum -- accepted
  Callicladium haldanianum (Grev.) H.A. Crum -- accepted
  Callicostella (Müll. Hal.) Mitt. -- accepted
  Callicostella pallida (Hornsch.) Ångstr. -- accepted -- pale callicostella moss
  Calliergidium (Renauld) Grout -- not accepted
  Calliergidium bakeri (Renauld) Grout -- not accepted
  Calliergidium pseudostramineum (Müll. Hal.) Grout -- not accepted
  Calliergidium pseudostramineum var. hoveyi Grout -- not accepted
  Calliergidium pseudostramineum var. plesistramineum (Renauld) Grout -- not accepted
  Calliergon (Sull.) Kindb. -- accepted
  Calliergon alpestre (Hedw.) Kindb. -- not accepted
  Calliergon arcticum (Sommerf.) Kindb. -- not accepted
  Calliergon circulifolium (Müll. Hal. & Kindb.) Kindb. -- not accepted
  Calliergon cordifolium (Hedw.) Kindb. -- accepted
  Calliergon cuspidatum (Hedw.) Kindb. -- not accepted
  Calliergon dilatatum (Wilson) Kindb. -- not accepted
  Calliergon eugyrium (Schimp.) Kindb. -- not accepted
  Calliergon giganteum (Schimp.) Kindb. -- accepted -- giant calliergon moss
  Calliergon goulardii (Schimp.) Kindb. -- not accepted
  Calliergon macounii Karczm. -- not accepted -- Macoun's calliergon moss
  Calliergon megalophyllum Mikut. -- accepted
  Calliergon molle (Hedw.) Kindb. -- not accepted
  Calliergon montanum (Lindb.) Kindb. -- not accepted
  Calliergon obtusifolium Karczm. -- not accepted
  Calliergon ochraceum (Turner ex Wilson) Kindb. -- not accepted
  Calliergon orbicularicordatum (Renauld & Cardot) Broth. -- accepted
  Calliergon polare (Lindb.) Kindb. -- not accepted
  Calliergon pseudo-arcticum (Kindb.) Kindb. -- not accepted
  Calliergon pseudomontanum (Kindb.) Kindb. -- not accepted
  Calliergon pseudosarmentosum (Cardot & Thér.) Broth. -- not accepted
  Calliergon richardsonii (Mitt.) Kindb. -- accepted -- Richardson's calliergon moss
  Calliergon richardsonii var. megalophyllum (Mikut.) Meyl. -- not accepted
  Calliergon sarmentosum (Wahlenb.) Kindb. -- not accepted
  Calliergon sarmentosum var. beringianum (Cardot & Thér.) Grout -- not accepted
  Calliergon sarmentosum var. fallaciosum (Milde) G. Roth -- not accepted
  Calliergon sarmentosum var. fontinaloides (Berggr.) G. Roth -- not accepted
  Calliergon schreberi (Willd. ex Brid.) Grout -- not accepted
  Calliergon stramineum (Dicks. ex Brid.) Kindb. -- not accepted
  Calliergon subeugyrium (Renauld & Cardot) Kindb. -- not accepted
  Calliergon subgiganteum Kindb. -- not accepted
  Calliergon submolle (Kindb.) Kindb. -- not accepted
  Calliergon subsarmentosum Kindb. (Rev. Bryol. 36: 42. 1909) -- not accepted
  Calliergon trifarium (F. Weber & D. Mohr) Kindb. -- not accepted
  Calliergon turgescens (T. Jensen) Kindb. -- not accepted
  Calliergon viridulum (Lindb.) Kindb. -- not accepted
  Calliergon wickesiae Grout -- not accepted
  Calliergonaceae -- accepted
  Calliergonella Loeske -- accepted
  Calliergonella cuspidata (Hedw.) Loeske -- accepted
  Calliergonella lindbergii (Mitt.) Hedenäs -- accepted
  Calliergonella schreberi (Willd. ex Brid.) Grout -- not accepted
  Calliergonella schreberi var. tananae (Grout) Grout -- not accepted
  Camptothecium Schimp. -- not accepted
  Camptothecium alsioides Kindb. -- not accepted
  Camptothecium amesiae Renauld & Cardot -- not accepted
  Camptothecium arenarium (Lesq.) A. Jaeger -- not accepted
  Camptothecium fulgescens (Mitt. ex Müll. Hal.) Paris -- not accepted
  Camptothecium lutescens ssp. fulgescens (Mitt. ex Müll. Hal.) Perss. -- not accepted
  Camptothecium lutescens var. occidentale Renauld & Cardot -- not accepted
  Camptothecium megaptilum Sull. -- not accepted
  Camptothecium nitens (Hedw.) Schimp. -- not accepted
  Camptothecium nitens var. falcifolium Renauld ex Nichols -- not accepted
  Campyliadelphus (Kindb.) R.S. Chopra -- not accepted
  Campyliadelphus chrysophyllus (Brid.) Kanda -- not accepted
  Campyliadelphus polygamus (Schimp.) Kanda -- not accepted
  Campyliadelphus protensus (Brid.) Kanda -- not accepted
  Campyliadelphus stellatus (Hedw.) Kanda -- not accepted
  Campylium (Sull.) Mitt. -- accepted
  Campylium adscendens (Lindb.) Perss. & Gjaerev. -- not accepted
  Campylium arcticum (R.S. Williams) Broth. -- not accepted
  Campylium cardotii (Thér.) Broth. -- not accepted -- Cardot's campylium moss
  Campylium chrysophyllum (Brid.) Lange -- accepted -- goldenleaf campylium moss
  Campylium chrysophyllum var. brevifolium (Renauld & Cardot) Grout -- not accepted
  Campylium halleri (Hedw.) Lindb. -- not accepted -- Haller's campylium moss
  Campylium hispidulum (Brid.) Mitt. -- not accepted -- hispid campylium moss
  Campylium hispidulum var. cordatum Grout -- not accepted
  Campylium hispidulum var. sommerfeltii (Myrin) Lindb. -- not accepted
  Campylium laxifolium Engelmark & Hedenäs -- accepted
  Campylium longicuspis (Lindb. & Arnell) Hedenäs -- accepted
  Campylium polygamum (Schimp.) C.E.O. Jensen -- not accepted
  Campylium polygamum var. fluitans Grout -- not accepted
  Campylium polygamum var. longinerve (Renauld & Cardot) Grout -- not accepted
  Campylium polygamum var. minus (Schimp.) G. Roth -- not accepted
  Campylium protensum (Brid.) Kindb. -- accepted
  Campylium radicale (P. Beauv.) Grout -- not accepted
  Campylium sommerfeltii (Myrin) Lange -- not accepted
  Campylium stellatum (Hedw.) C.E.O. Jensen -- accepted -- star campylium moss
  Campylium stellatum ssp. cardotii (Thér.) Grout -- not accepted
  Campylium stellatum var. adscendens (Lindb.) Perss. -- not accepted
  Campylium stellatum var. arcticum (R.S. Williams) L.I. Savicz -- not accepted -- arctic star campylium moss
  Campylium stellatum var. protensum (Brid.) Bryhn -- not accepted -- star campylium moss
  Campylium treleasei (Renauld) Broth. -- not accepted
  Campylodontium hypnoides Schwägr. -- not accepted
  Campylophyllum (Schimp.) M. Fleisch. -- accepted
  Campylophyllum halleri (Hedw.) M. Fleisch. -- accepted
  Campylophyllum hispidulum (Brid.) Hedenäs -- accepted
  Campylophyllum sommerfeltii (Myrin) Hedenäs -- accepted
  Catoscopiaceae -- accepted
  Catoscopium Brid. -- accepted -- golf club moss
  Catoscopium nigritum (Hedw.) Brid. -- accepted -- black golf club moss
  Chamberlainia Grout -- not accepted
  Chamberlainia acuminata (Hedw.) Grout -- not accepted
  Chamberlainia albicans (Hedw.) H. Rob. -- not accepted
  Chamberlainia biventrosa (Müll. Hal.) Grout -- not accepted
  Chamberlainia cyrtophylla (Kindb.) Grout -- not accepted
  Chamberlainia rotaeana (De Not.) H. Rob. -- not accepted
  Chryso-hypnum Hampe -- accepted
  Chryso-hypnum arcticum R.S. Williams -- not accepted
  Chryso-hypnum diminutivum (Hampe) W.R. Buck -- accepted -- diminutive chryso-hypnum moss
  Cinclidium Sw. -- accepted
  Cinclidium arcticum (Bruch & Schimp.) Schimp. -- accepted -- arctic cinclidium moss
  Cinclidium hymenophyllum (Bruch & Schimp.) Lindb. -- not accepted
  Cinclidium latifolium Lindb. -- accepted -- wideleaf cinclidium moss
  Cinclidium stygium Sw. -- accepted
  Cinclidium subrotundum Lindb. -- accepted
  Cirriphyllum Grout -- accepted
  Cirriphyllum boscii (Schwägr.) Grout -- not accepted
  Cirriphyllum brandegeei (Austin) Grout -- not accepted -- Brandegee's cirriphyllum moss
  Cirriphyllum cirrosum (Schwägr.) Grout -- not accepted
  Cirriphyllum piliferum (Hedw.) Grout -- accepted
  Cladodium inclinatum (Sw. ex Brid.) Brid. -- not accepted
  Claopodium (Lesq. & James) Renauld & Cardot -- accepted
  Claopodium bolanderi Best -- accepted -- Bolander's claopodium moss
  Claopodium crispifolium (Hook.) Renauld & Cardot -- accepted
  Claopodium pellucinerve (Mitt.) Best -- accepted
  Claopodium subpiliferum (Lindb. & Arnell) Broth. -- not accepted
  Claopodium whippleanum (Sull.) Renauld & Cardot -- accepted -- Whipple's claopodium moss
  Claopodium whippleanum var. leuconeurum (Sull. & Lesq.) Grout -- not accepted
  Clasmatodon Hook. & Wilson -- accepted
  Clasmatodon parvulus (Hampe) Sull. -- accepted
  Clasmatodon parvulus var. rupestris Sull. & Lesq. -- not accepted
  Climaciaceae -- accepted
  Climacium F. Weber & D. Mohr -- accepted
  Climacium americanum Brid. -- accepted -- American climacium moss
  Climacium americanum ssp. kindbergii (Renauld & Cardot) Kindb. -- not accepted
  Climacium americanum var. kindbergii Renauld & Cardot -- not accepted
  Climacium americanum var. pseudo-kindbergii Cardot & Thér. -- not accepted
  Climacium dendroides (Hedw.) F. Weber & D. Mohr -- accepted -- tree climacium moss
  Climacium dendroides var. oregonense Renauld & Cardot -- not accepted
  Climacium kindbergii (Renauld & Cardot) Grout -- not accepted -- Kindberg's climacium moss
  Codonoblepharon menziesii Schwägr. -- not accepted
  Conardia H. Rob. -- accepted
  Conardia compacta (Hook.) H. Rob. -- accepted -- compact conardia moss
  Conostomum Sw. ex F. Weber & D. Mohr -- accepted
  Conostomum boreale Sw. -- not accepted
  Conostomum tetragonum (Hedw.) Lindb. -- accepted
  Cratoneurella uncinifolia (Broth. & Paris) H. Rob. -- not accepted
  Cratoneuron (Sull.) Spruce -- accepted
  Cratoneuron commutatum var. falcatum (Brid.) Mönk. -- not accepted
  Cratoneuron commutatum var. sulcatum (Lindb.) Mönk. -- not accepted
  Cratoneuron falcatum (Brid.) G. Roth -- not accepted
  Cratoneuron falcatum var. williamsii (Grout) Flowers -- not accepted
  Cratoneuron filicinum (Hedw.) Spruce -- accepted
  Cratoneuron filicinum var. aciculinum (Müll. Hal. & Kindb.) Grout -- not accepted
  Cratoneuron sordidum (Müll. Hal.) Broth. -- not accepted
  Cratoneuron williamsii Grout -- not accepted
  Cryphaea D. Mohr -- accepted
  Cryphaea californica (Sull. ex Lesq.) Kindb. -- not accepted
  Cryphaea filiformis (Hedw.) Brid. -- accepted -- filiform cryphaea moss
  Cryphaea floridensis H.A. Crum -- not accepted
  Cryphaea glomerata Schimp. ex Sull. -- accepted
  Cryphaea glomerata var. scabra Grout -- not accepted
  Cryphaea leptoclada Sull. -- not accepted
  Cryphaea nervosa (Hook. & Wilson) Müll. Hal. -- accepted
  Cryphaea ravenelii Austin -- accepted -- Ravenel's cryphaea moss
  Cryphaeaceae -- accepted
  Ctenidium (Schimp.) Mitt. -- accepted
  Ctenidium diminutivum (Hampe) M. Fleisch. -- not accepted
  Ctenidium molluscum (Hedw.) Mitt. -- accepted -- mollusc ctenidium moss
  Ctenidium molluscum var. condensatum (Schimp.) E. Britton -- not accepted
  Ctenidium schofieldii N. Nishim. -- accepted -- Schofield's ctenidium moss
  Ctenidium subrectifolium (Brid.) G. Pedano ex W.R. Buck & B.H. Allen -- not accepted
  Cupressina turgens Müll. Hal. -- not accepted
  Cyclodictyon Mitt. -- accepted
  Cyclodictyon varians (Sull.) Kuntze -- accepted
  Cylindrothecium challengeri Paris -- not accepted
  Cylindrothecium demetrii Renauld & Cardot -- not accepted
  Cynontodium cernuum Hedw. -- not accepted
  Cyrto-hypnum (Hampe) Hampe & Lorentz -- accepted
  Cyrto-hypnum involvens (Hedw.) W.R. Buck & H.A. Crum -- accepted
  Cyrto-hypnum minutulum (Hedw.) W.R. Buck & H.A. Crum -- accepted
  Cyrto-hypnum pygmaeum (Schimp.) W.R. Buck & H.A. Crum -- accepted -- pygmy cyrto-hypnum moss
  Cyrto-hypnum schistocalyx (Müll. Hal.) W.R. Buck & H.A. Crum -- accepted
  Cyrtomnium Holmen -- accepted
  Cyrtomnium hymenophylloides (Huebener) T.J. Kop. -- accepted
  Cyrtomnium hymenophyllum (Bruch & Schimp.) Holmen -- accepted
  Dacryophyllum Ireland -- accepted
  Dacryophyllum falcifolium Ireland -- accepted
  Daltonia Hook. & Taylor -- accepted
  Daltonia gracilis Mitt. -- not accepted
  Daltonia nervosa Hook. & Wilson -- not accepted
  Daltonia splachnoides (Sm.) Hook. & Taylor -- accepted
  Daltoniaceae -- accepted
  Dendroalsia E. Britton ex Broth. -- accepted
  Dendroalsia abietina (Hook.) E. Britton ex Broth. -- accepted
  Dichelyma Myrin -- accepted
  Dichelyma capillaceum (With.) Myrin -- accepted
  Dichelyma cylindricarpum Austin -- not accepted
  Dichelyma falcatum (Hedw.) Myrin -- accepted -- sickle dichelyma moss
  Dichelyma falcatum var. uncinatum (Mitt.) E. Lawton -- not accepted
  Dichelyma obtusulum Kindb. -- not accepted
  Dichelyma pallescens Bruch & Schimp. -- accepted
  Dichelyma subulatum (P. Beauv.) Myrin -- not accepted
  Dichelyma uncinatum Mitt. -- accepted
  Dichelyma uncinatum var. cylindricarpum (Austin) Cardot -- not accepted
  Dicranum majus Turner -- accepted
  Dicranum majus var. majus Turner -- accepted
  Dissodon hornschuchii Grev. & Arn. -- not accepted
  Dolichotheca pilifera (Sw.) M. Fleisch. ex Podp. -- not accepted
  Dolichotheca seligeri (Brid.) Loeske -- not accepted
  Dolichotheca striatella (Brid.) Loeske -- not accepted
  Dolichotheca turfacea (Lindb.) Loeske -- not accepted
  Donnellia Austin -- accepted
  Donnellia commutata (Müll. Hal.) W.R. Buck -- accepted
  Donrichardsia H.A. Crum & L.E. Anderson -- accepted
  Donrichardsia macroneuron (Grout) H.A. Crum & L.E. Anderson -- accepted
  Donrichardsia pringlei (Cardot) Huttunen & Ignatov -- accepted
  Dorcadion lyellii (Hook. & Taylor) Lindb. -- not accepted
  Dorcadion rupestre (Schleich. ex Schwägr.) Lindb. -- not accepted
  Dorcadion striatum (Hedw.) Lindb. -- not accepted
  Drepanium (Schimp.) C.E.O. Jensen -- accepted
  Drepanium recurvatum (Lindb. & Arnell) G. Roth -- accepted
  Drepanocladus (Müll. Hal.) G. Roth -- accepted
  Drepanocladus aduncus (Hedw.) Warnst. -- accepted
  Drepanocladus aduncus var. capillifolius (Warnst.) Riehm. -- not accepted
  Drepanocladus aduncus var. kneiffii (Schimp.) Mönk. -- not accepted -- Kneiff's drepanocladus moss
  Drepanocladus aduncus var. polycarpon (Blandow ex Voit) G. Roth -- not accepted
  Drepanocladus aduncus var. pseudofluitans (Sanio) Glow. -- not accepted
  Drepanocladus angustifolius (Hedenäs) Hedenäs & C. Rosborg -- not accepted
  Drepanocladus arcticus (R.S. Williams) Hedenäs -- accepted
  Drepanocladus badius (Hartm.) G. Roth -- not accepted
  Drepanocladus berggrenii (C.E.O. Jensen) G. Roth -- not accepted
  Drepanocladus brevifolius (Lindb.) Warnst. -- not accepted -- shortleaf drepanocladus moss
  Drepanocladus capillifolius (Warnst.) Warnst. -- not accepted
  Drepanocladus cardotii (Thér.) Hedenäs -- accepted
  Drepanocladus crassicostatus Janssens -- not accepted
  Drepanocladus exannulatus (Schimp.) Warnst. -- not accepted
  Drepanocladus exannulatus var. mexicanus Cardot -- not accepted
  Drepanocladus exannulatus var. purpurascens (Schimp.) Herzog -- not accepted
  Drepanocladus exannulatus var. rotae (De Not.) Loeske -- not accepted
  Drepanocladus exannulatus var. tundrae (Arnell) Warnst. -- not accepted
  Drepanocladus fluitans (Hedw.) Warnst. -- not accepted
  Drepanocladus fluitans var. falcatus (Sanio ex C.E.O. Jensen) G. Roth -- not accepted
  Drepanocladus fluitans var. setiformis (Renauld) Mönk. -- not accepted
  Drepanocladus fluitans var. uncatus H.A. Crum, Steere & L.E. Anderson -- not accepted
  Drepanocladus intermedius (Lindb.) Warnst. -- not accepted
  Drepanocladus kneiffii (Schimp.) Warnst. -- not accepted
  Drepanocladus lapponicus (Norrl.) Smirnova -- not accepted
  Drepanocladus latifolius (Lindb. & Arnell) Warnst. -- not accepted
  Drepanocladus latinervis Warnst. -- accepted
  Drepanocladus longifolius (Wilson ex Mitt.) Broth. ex Paris -- accepted
  Drepanocladus lycopodioides var. brevifolius (Lindb.) Mönk. -- not accepted
  Drepanocladus polygamus (Schimp.) Hedenäs -- accepted
  Drepanocladus pseudosarmentosus (Cardot & Thér.) Perss. -- not accepted
  Drepanocladus pseudostramineus (Müll. Hal.) G. Roth -- not accepted
  Drepanocladus revolvens (Sw.) Warnst. -- not accepted
  Drepanocladus revolvens var. intermedius (Lindb.) L.R. Wilson -- not accepted
  Drepanocladus revolvens var. miquelonemsis (Renauld) Grout -- not accepted
  Drepanocladus rotae var. trichophyllus Warnst. -- not accepted
  Drepanocladus simplicissimus Warnst. -- not accepted
  Drepanocladus sordidus (Müll. Hal.) Hedenäs -- accepted
  Drepanocladus stagnatus Zarnowiec -- not accepted
  Drepanocladus tenuinervis Perss. ex T.J. Kop. -- not accepted
  Drepanocladus trichophyllus (Warnst.) Podp. -- not accepted
  Drepanocladus trifarius (F. Weber & D. Mohr) Broth. ex Paris -- not accepted
  Drepanocladus tundrae (Arnell) Loeske -- not accepted
  Drepanocladus turgescens (T. Jensen) Broth. -- not accepted
  Drepanocladus uncinatus (Hedw.) Warnst. -- not accepted
  Drepanocladus uncinatus var. symmetricus (Renauld & Cardot) Grout -- not accepted
  Drepanocladus vernicosus (Mitt.) Warnst. -- not accepted
  Drummondia Hook. -- accepted
  Drummondia canadensis (Kindb.) J.M. Macoun & Kindb. -- not accepted
  Drummondia clavellata Hook. f. -- not accepted
  Drummondia clavellata var. canadensis Kindb. -- not accepted
  Drummondia prorepens (Hedw.) E. Britton -- accepted
  Echinophyllum T.J. O'Brien -- accepted
  Echinophyllum sachalinense (Lindb.) T.J. O'Brien -- accepted
  Ectropothecium vesiculare (Schwägr.) Mitt. -- not accepted
  Elmeriobryum Broth. -- not accepted
  Elodium (Sull.) Austin -- accepted
  Elodium blandowii (F. Weber & D. Mohr) Eckel -- accepted
  Elodium elodioides (Renauld & Cardot) Eckel -- accepted
  Elodium paludosum Austin -- accepted
  Elodium paludosum var. elodioides (Renauld & Cardot) Best -- not accepted
  Entodon Müll. Hal. -- accepted
  Entodon beyrichii (Schwägr.) Müll. Hal. -- accepted -- Beyrich's entodon moss
  Entodon brevisetus (Hook. & Wilson) Lindb. -- accepted
  Entodon challengeri (Paris) Cardot -- accepted
  Entodon cladorrhizans (Hedw.) Müll. Hal. -- accepted
  Entodon concinnus (De Not.) Paris -- accepted
  Entodon drummondii (Schimp. ex Sull.) A. Jaeger -- not accepted
  Entodon erythropus Mitt. -- not accepted
  Entodon hampeanus Müll. Hal. -- accepted -- Hampe's entodon moss
  Entodon macropodus (Hedw.) Müll. Hal. -- accepted
  Entodon orthocarpus (Brid.) Lindb. -- not accepted
  Entodon schleicheri (Schimp.) Demet. -- accepted -- Schleicher's entodon moss
  Entodon seductrix (Hedw.) Müll. Hal. -- accepted -- seductive entodon moss
  Entodon sullivantii (Müll. Hal.) Lindb. -- accepted -- Sullivant's entodon moss
  Entodontaceae -- accepted
  Entodontopsis Broth. -- accepted
  Entodontopsis leucostega (Brid.) W.R. Buck & Ireland -- accepted
  Epipterygium Lindb. -- accepted
  Epipterygium tozeri (Grev.) Lindb. -- accepted -- Tozer's epipterygium moss
  Eurhynchiastrum Ignatov & Huttunen -- accepted
  Eurhynchiastrum pulchellum (Hedw.) Ignatov & Huttunen -- accepted
  Eurhynchiastrum pulchellum var. barnesii (Renauld & Cardot) Ignatov -- accepted -- Barnes' eurhynchium moss
  Eurhynchiastrum pulchellum var. pulchellum (Hedw.) Ignatov & Huttunen -- accepted
  Eurhynchium Schimp. -- accepted
  Eurhynchium brittoniae Grout -- not accepted
  Eurhynchium colpophyllum Sull. -- not accepted
  Eurhynchium hians (Hedw.) Sande Lac. -- not accepted
  Eurhynchium macroneuron (Grout) H.A. Crum -- not accepted
  Eurhynchium praelongum (Hedw.) Schimp. -- not accepted
  Eurhynchium praelongum var. californicum Grout -- not accepted
  Eurhynchium praelongum var. stokesii (Turner) Dixon -- not accepted
  Eurhynchium pringlei (Cardot) H.A. Crum & L.E. Anderson -- not accepted
  Eurhynchium pulchellum var. barnesii (Renauld & Cardot) H.A. Crum, Steere & L.E. Anderson -- not accepted
  Eurhynchium semiasperum Müll. Hal. & Kindb. -- not accepted
  Eurhynchium serrulatum (Hedw.) Kindb. -- not accepted
  Eurhynchium strigosum var. barnesii Renauld & Cardot -- not accepted
  Eurhynchium styriacum (Limpr.) Kindb. -- not accepted
  Eurhynchium taylorae R.S. Williams -- not accepted
  Fabronia Raddi -- accepted
  Fabronia ciliaris (Brid.) Brid. -- accepted
  Fabronia ciliaris var. polycarpa (Hook.) W.R. Buck -- not accepted
  Fabronia ciliaris var. wrightii (Sull.) W.R. Buck -- not accepted -- Wright's fabronia moss
  Fabronia donnellii Austin -- not accepted
  Fabronia pusilla Raddi -- accepted
  Fabronia ravenelii Sull. -- not accepted
  Fabronia wrightii Sull. -- not accepted
  Fabroniaceae -- accepted
  Fissidens sciuroides var. vaginatus Michx. -- not accepted
  Fontinalaceae -- accepted
  Fontinalis Hedw. -- accepted
  Fontinalis allenii Cardot -- not accepted
  Fontinalis antipyretica Hedw. -- accepted -- antifever fontinalis moss
  Fontinalis antipyretica var. oreganensis Renauld & Cardot -- not accepted
  Fontinalis antipyretica var. robusta Cardot -- not accepted
  Fontinalis biformis Sull. -- not accepted
  Fontinalis californica Sull. -- not accepted
  Fontinalis capillacea With. -- not accepted
  Fontinalis cardotii (Renauld) Cardot -- not accepted
  Fontinalis chrysophylla Cardot -- not accepted
  Fontinalis columbica Cardot -- not accepted
  Fontinalis dalecarlica Bruch & Schimp. -- accepted
  Fontinalis dalecarlica var. macounii Cardot -- not accepted
  Fontinalis delamarei (Renauld & Cardot) Renauld & Cardot -- not accepted
  Fontinalis dichelymoides Lindb. -- not accepted
  Fontinalis disticha var. tenuior Sull. -- not accepted
  Fontinalis duriaei Schimp. -- not accepted
  Fontinalis eatonii Sull. & Lesq. -- not accepted
  Fontinalis falcata Hedw. -- not accepted
  Fontinalis filiformis Sull. & Lesq. -- not accepted
  Fontinalis filiformis var. tenuifolia Cardot -- not accepted
  Fontinalis flaccida Renauld & Cardot -- not accepted -- flaccid fontinalis moss
  Fontinalis frostii Sull. -- not accepted
  Fontinalis gigantea Sull. -- not accepted
  Fontinalis holzingeri Cardot -- not accepted
  Fontinalis howellii Renauld & Cardot -- accepted
  Fontinalis hypnoides Hartm. -- accepted
  Fontinalis involuta Renauld & Cardot -- not accepted
  Fontinalis kindbergii Renauld & Cardot -- not accepted
  Fontinalis langloisii Cardot -- not accepted -- Langlois' fontinalis moss
  Fontinalis lescurii var. cymbifolia Austin -- not accepted
  Fontinalis lescurii var. gracilescens Sull. -- not accepted
  Fontinalis lescurii var. ramosior Sull. -- not accepted
  Fontinalis mac-millanii Cardot -- not accepted
  Fontinalis maritima Müll. Hal. -- not accepted
  Fontinalis mercediana Lesq. -- not accepted
  Fontinalis microdonta Renauld -- not accepted
  Fontinalis missourica Cardot -- not accepted -- Missouri fontinalis moss
  Fontinalis mollis Müll. Hal. -- not accepted
  Fontinalis neomexicana Sull. & Lesq. -- accepted -- New Mexican fontinalis moss
  Fontinalis nitida Lindb. & Arnell -- not accepted
  Fontinalis nitida var. angustiretis Cardot -- not accepted
  Fontinalis novae-angliae Sull. -- accepted -- New England fontinalis moss
  Fontinalis novae-angliae ssp. cardotii Renauld -- not accepted
  Fontinalis novae-angliae var. cymbifolia (Austin) W.H. Welch -- not accepted -- New England fontinalis moss
  Fontinalis novae-angliae var. groutii W.H. Welch -- not accepted
  Fontinalis novae-angliae var. heterophylla Cardot -- not accepted
  Fontinalis novae-angliae var. latifolia Cardot -- not accepted
  Fontinalis obscura Cardot -- not accepted
  Fontinalis patula Cardot -- not accepted
  Fontinalis redfearnii B.H. Allen -- accepted
  Fontinalis renauldii Cardot -- not accepted
  Fontinalis sphagnifolia (Müll. Hal.) Wijk & Margad. -- accepted
  Fontinalis squamosa var. dalecarlica (Bruch & Schimp.) Hartm. -- not accepted
  Fontinalis subcarinata Cardot -- not accepted
  Fontinalis subulata P. Beauv. -- not accepted
  Fontinalis sullivantii Lindb. -- accepted -- Sullivant's fontinalis moss
  Fontinalis tenella (Cardot) Cardot -- not accepted
  Fontinalis umbachii Cardot -- not accepted
  Fontinalis utahensis Cardot & Thér. -- not accepted
  Fontinalis waghornei Cardot -- not accepted
  Fontinalis welchiana B.H. Allen -- accepted -- Welch's fontinalis moss
  Forsstroemia Lindb. -- accepted
  Forsstroemia nitida Lindb. -- not accepted
  Forsstroemia ohioensis (Sull.) Lindb. -- not accepted
  Forsstroemia producta (Hornsch.) Paris -- accepted
  Forsstroemia trichomitria (Hedw.) Lindb. -- accepted
  Gemmabryum J.R. Spence & H.P. Ramsay -- accepted
  Gemmabryum apiculatum (Schwägr.) J.R. Spence & H.P. Ramsay -- accepted
  Gemmabryum badium (Bruch ex Brid.) J.R. Spence -- accepted
  Gemmabryum barnesii (J.B. Wood ex Schimp.) J.R. Spence -- accepted
  Gemmabryum bicolor (Dicks.) J.R. Spence -- not accepted
  Gemmabryum caespiticium (Hedw.) J.R. Spence -- accepted
  Gemmabryum californicum (Sull.) J.R. Spence -- accepted
  Gemmabryum coronatum (Schwägr.) J.R. Spence & H.P. Ramsay -- accepted
  Gemmabryum demaretianum (Arts) J.R. Spence -- accepted
  Gemmabryum dichotomum (Hedw.) J.R. Spence & H.P. Ramsay -- accepted
  Gemmabryum exile (Dozy & Molk.) J.R. Spence & H.P. Ramsay -- accepted
  Gemmabryum gemmiferum (R. Wilczek & Demaret) J.R. Spence -- accepted
  Gemmabryum gemmilucens (R. Wilczek & Demaret) J.R. Spence -- accepted
  Gemmabryum klinggraeffii (Schimp.) J.R. Spence & H.P. Ramsay -- accepted
  Gemmabryum kunzei (Hornsch.) J.R. Spence -- accepted
  Gemmabryum radiculosum (Brid.) J.R. Spence & H.P. Ramsay -- accepted
  Gemmabryum ruderale (Crundw. & Nyholm) J.R. Spence -- accepted
  Gemmabryum subapiculatum (Hampe) J.R. Spence & H.P. Ramsay -- accepted
  Gemmabryum tenuisetum (Limpr.) J.R. Spence & H.P. Ramsay -- accepted
  Gemmabryum valparaisense (Thér.) J.R. Spence -- accepted
  Gemmabryum violaceum (Crundw. & Nyholm) J.R. Spence -- accepted
  Girgensohnia ruthenica (Weinm.) Kindb. -- not accepted
  Glossadelphus andersonii E.B. Bartram -- not accepted
  Glossadelphus vivicolor (Broth. & Dixon) Broth. -- not accepted
  Glossophyllum (Müll. Hal.) Hampe -- not accepted
  Glyphocarpa cernua Wilson -- not accepted
  Glyphocarpa laevisphaera Taylor -- not accepted
  Gollania Broth. -- accepted
  Gollania turgens (Müll. Hal.) Ando -- accepted
  Groutia Broth. -- not accepted
  Groutiella Steere -- accepted
  Groutiella tomentosa (Hornsch.) Wijk & Margad. -- accepted -- tomentose groutiella moss
  Groutiella tumidula (Mitt.) Vitt -- accepted
  Gymnostomum prorepens Hedw. -- not accepted
  Hageniella Broth. -- accepted
  Hageniella micans (Mitt.) B.C. Tan & Y. Jia -- accepted
  Hamatocaulis Hedenäs -- accepted
  Hamatocaulis lapponicus (Norrl.) Hedenäs -- accepted -- Lapland hamatocaulis moss
  Hamatocaulis vernicosus (Mitt.) Hedenäs -- accepted
  Haplocladium (Müll. Hal.) Müll. Hal. -- accepted
  Haplocladium angustifolium (Hampe & Müll. Hal.) Broth. -- accepted
  Haplocladium microphyllum (Hedw.) Broth. -- accepted
  Haplocladium praelongum (Schimp. ex Besch.) H.A. Crum -- not accepted
  Haplocladium virginianum (Brid.) Broth. -- accepted
  Haplodon R. Br. ex I. Hagen -- not accepted
  Haplodontium Hampe -- accepted
  Haplodontium macrocarpum (Hook.) J.R. Spence -- accepted
  Haplodontium tehamense (Showers) J.R. Spence -- accepted
  Haplohymenium Dozy & Molk. -- accepted
  Haplohymenium triste (Ces.) Kindb. -- accepted
  Hedwigia P. Beauv. -- accepted
  Hedwigia albicans var. detonsa M. Howe -- not accepted
  Hedwigia ciliata (Hedw.) P. Beauv. -- accepted -- ciliate hedwigia moss
  Hedwigia ciliata ssp. subnuda Kindb. -- not accepted
  Hedwigia detonsa (M. Howe) W.R. Buck & D.H. Norris -- accepted
  Hedwigia pilifera Mitt. -- not accepted
  Hedwigia secunda Hook. -- not accepted
  Hedwigia stellata Hedenäs -- accepted
  Hedwigiaceae -- accepted
  Helicodontium fabronia Schwägr. -- not accepted
  Helodiaceae -- accepted
  Helodium Warnst. -- not accepted
  Helodium blandowii (F. Weber & D. Mohr) Warnst. -- not accepted -- Blandow's helodium moss
  Helodium blandowii var. elodioides (Renauld & Cardot) H.A. Crum, Steere & L.E. Anderson -- not accepted
  Helodium paludosum (Austin) Austin ex Broth. -- not accepted
  Helodium paludosum var. elodioides (Renauld & Cardot) Grout -- not accepted
  Helodium sachalinense (Lindb.) Broth. -- not accepted
  Henicodium (Müll. Hal.) Kindb. -- accepted
  Henicodium geniculatum (Mitt.) W.R. Buck -- accepted
  Herpetineuron (Müll. Hal.) Cardot -- accepted
  Herpetineuron toccoae (Sull. & Lesq.) Cardot -- accepted
  Herzogiella Broth. -- accepted
  Herzogiella adscendens (Lindb.) Z. Iwats. & W.B. Schofield -- not accepted
  Herzogiella seligeri (Brid.) Z. Iwats. -- accepted -- Seliger's herzogiella moss
  Herzogiella striatella (Brid.) Z. Iwats. -- accepted
  Herzogiella turfacea (Lindb.) Z. Iwats. -- accepted
  Heterocladium Bruch & Schimp. -- accepted
  Heterocladium dimorphum (Brid.) Schimp. -- accepted
  Heterocladium heteropterioides Best -- not accepted
  Heterocladium leucotrichum Mitt. -- not accepted
  Heterocladium macounii Best -- accepted -- Macoun's heterocladium moss
  Heterocladium procurrens (Mitt.) A. Jaeger -- not accepted
  Heterocladium vancouveriense (Kindb.) Kindb. -- not accepted
  Heterophyllium (Schimp.) Kindb. -- accepted
  Heterophyllium affine (Hook.) M. Fleisch. -- accepted
  Heterophyllium haldanianum (Grev.) M. Fleisch. -- not accepted
  Heterophyllium nemorosum (Koch ex Brid.) Kindb. -- not accepted
  Holmgrenia Lindb. -- not accepted
  Holmgrenia diminutiva Grout -- not accepted
  Homalia Brid. -- accepted
  Homalia besseri Lobarzewski -- not accepted
  Homalia sharpii R.S. Williams -- not accepted
  Homalia trichomanoides (Hedw.) Schimp. -- accepted
  Homalia trichomanoides var. trichomanoides (Hedw.) Schimp. -- accepted
  Homalia wrightii Sull. -- not accepted
  Homaliadelphus Dixon & P. de la Varde -- accepted
  Homaliadelphus sharpii (R.S. Williams) Sharp -- accepted -- Sharp's homaliadelphus moss
  Homaliopsis Dixon & P. de la Varde -- not accepted
  Homalotheciella (Cardot) Broth. -- accepted
  Homalotheciella fabronifolia (Grout) Broth. -- not accepted
  Homalotheciella subcapillata (Hedw.) Broth. -- accepted
  Homalothecium Schimp. -- accepted
  Homalothecium aeneum (Mitt.) E. Lawton -- accepted -- bright copper homalothecium moss
  Homalothecium arenarium (Lesq.) E. Lawton -- accepted -- sandwort homalothecium moss
  Homalothecium aureum (Spruce) H. Rob. -- accepted
  Homalothecium californicum Hedenäs, Huttunen, Shevock & D.H. Norris -- accepted
  Homalothecium fulgescens (Mitt. ex Müll. Hal.) A. Jaeger -- accepted -- tree mat homalothecium moss
  Homalothecium lutescens ssp. fulgescens (Mitt. ex Müll. Hal.) Heike Hofm. -- not accepted
  Homalothecium megaptilum (Sull.) H. Rob. -- accepted
  Homalothecium nevadense (Lesq.) Renauld & Cardot -- accepted -- Nevada homalothecium moss
  Homalothecium nevadense ssp. aeneum (Mitt.) Heike Hofm. -- not accepted
  Homalothecium nitens (Hedw.) H. Rob. -- not accepted
  Homalothecium nitens var. falcifolium (Renauld ex Nichols) Wijk & Margad. -- not accepted
  Homalothecium nuttallii (Wilson) A. Jaeger -- accepted -- Nuttall's homalothecium moss
  Homalothecium pinnatifidum (Sull. & Lesq.) E. Lawton -- not accepted -- pinnatifid homalothecium moss
  Homalothecium sericeum (Hedw.) Schimp. -- accepted -- silken homalothecium moss
  Homalothecium subcapillatum (Hedw.) Sull. -- not accepted
  Homomallium (Schimp.) Loeske -- accepted
  Homomallium adnatum (Hedw.) Broth. -- accepted
  Homomallium incurvatum (Schrad. ex Brid.) Loeske -- accepted
  Homomallium mexicanum Cardot -- accepted -- Mexican homomallium moss
  Homomallium mexicanum var. latifolium Cardot -- accepted -- wideleaf homomallium moss
  Homomallium mexicanum var. mexicanum Cardot -- accepted -- Mexican homomallium moss
  Hookeria Sm. -- accepted
  Hookeria acutifolia Hook. & Grev. -- accepted -- sharpleaf hookeria moss
  Hookeria hypnacea Müll. Hal. -- not accepted
  Hookeria leskeoides Hook. -- not accepted
  Hookeria lucens (Hedw.) Sm. -- accepted
  Hookeria pallida Hornsch. -- not accepted
  Hookeria radiculosa Hook. -- not accepted
  Hookeria splachnoides Schleich. ex Schwägr. -- not accepted
  Hookeria sullivantii Müll. Hal. -- not accepted
  Hookeria varians Sull. -- not accepted
  Hookeriaceae -- accepted
  Hookeriopsis heteroica Cardot -- not accepted
  Hygroamblystegium Loeske -- accepted
  Hygroamblystegium fluviatile (Hedw.) Loeske -- not accepted -- streamside hygroamblystegium moss
  Hygroamblystegium humile (P. Beauv.) Vanderp., Hedenäs & Goffinet -- not accepted
  Hygroamblystegium macroneuron Grout -- not accepted
  Hygroamblystegium noterophilum (Sull. & Lesq.) Warnst. -- not accepted
  Hygroamblystegium tenax (Hedw.) Jenn. -- not accepted
  Hygroamblystegium varium (Hedw.) Mönk. -- accepted
  Hygroamblystegium varium ssp. noterophilum (Sull. & Lesq.) Vanderp. & Hedenäs -- accepted
  Hygroamblystegium varium ssp. varium (Hedw.) Mönk. -- accepted
  Hygroamblystegium varium var. humile (P. Beauv.) Vanderp. & Hedenäs -- accepted
  Hygroamblystegium varium var. varium (Hedw.) Mönk. -- accepted
  Hygrohypnella Ignatov & Ignatova -- not accepted
  Hygrohypnella bestii (Renauld & Bryhn) Ignatov & Ignatova -- not accepted
  Hygrohypnella ochracea (Turner ex Wilson) Ignatov & Ignatova -- not accepted
  Hygrohypnella polaris (Lindb.) Ignatov & Ignatova -- not accepted
  Hygrohypnum Lindb. -- accepted
  Hygrohypnum alpestre (Hedw.) Loeske -- not accepted
  Hygrohypnum alpinum (Lindb.) Loeske -- accepted -- alpine hygrohypnum moss
  Hygrohypnum bestii (Renauld & Bryhn) Holz. -- not accepted -- Best's hygrohypnum moss
  Hygrohypnum closteri (Austin) Grout -- accepted
  Hygrohypnum cochleariifolium (Venturi ex De Not.) Broth. -- not accepted
  Hygrohypnum duriusculum (De Not.) D.W. Jamieson -- not accepted
  Hygrohypnum eugyrium (Schimp.) Loeske -- not accepted
  Hygrohypnum eugyrium ssp. subeugyrium (Renauld & Cardot) Grout -- not accepted
  Hygrohypnum eugyrium var. dilatatum (Wilson) Grout -- not accepted
  Hygrohypnum eugyrium var. mackayi (Schimp.) Broth. -- not accepted
  Hygrohypnum eumontanum H.A. Crum, Steere & L.E. Anderson -- not accepted
  Hygrohypnum luridum (Hedw.) Jenn. -- accepted
  Hygrohypnum molle (Hedw.) Loeske -- accepted
  Hygrohypnum molle var. bestii (Renauld & Bryhn) Habeeb -- not accepted
  Hygrohypnum montanum (Lindb.) Broth. -- not accepted -- montane hygrohypnum moss
  Hygrohypnum norvegicum (Schimp.) J.J. Amann -- not accepted -- Norway hygrohypnum moss
  Hygrohypnum novae-caesareae (Austin) Grout -- not accepted
  Hygrohypnum ochraceum (Turner ex Wilson) Loeske -- accepted
  Hygrohypnum ochraceum var. filiforme (Limpr.) J.J. Amann -- not accepted
  Hygrohypnum ochraceum var. flaccidum (Milde) J.J. Amann -- not accepted
  Hygrohypnum ochraceum var. uncinatum (Milde) Loeske -- not accepted
  Hygrohypnum palustre Loeske -- not accepted
  Hygrohypnum palustre var. ehlei (Arnold) Grout -- not accepted
  Hygrohypnum palustre var. julaceum (Schimp.) Loeske -- not accepted
  Hygrohypnum palustre var. subsphaericarpon (Schleich. ex Brid.) Loeske -- not accepted
  Hygrohypnum polare (Lindb.) Loeske -- accepted -- northern hygrohypnum moss
  Hygrohypnum pseudomontanum (Kindb.) Grout -- not accepted
  Hygrohypnum smithii (Sw.) Broth. -- not accepted -- Smith's hygrohypnum moss
  Hygrohypnum smithii var. goulardii (Schimp.) Wijk & Margad. -- not accepted
  Hygrohypnum styriacum (Limpr.) Broth. -- accepted
  Hygrohypnum subeugyrium (Renauld & Cardot) Broth. -- not accepted
  Hylocomiaceae -- accepted
  Hylocomiadelphus Ochyra & Stebel -- not accepted
  Hylocomiastrum M. Fleisch. ex Broth. -- accepted
  Hylocomiastrum pyrenaicum (Spruce) M. Fleisch. ex Broth. -- accepted
  Hylocomiastrum umbratum (Hedw.) M. Fleisch. ex Broth. -- accepted
  Hylocomium Schimp. -- accepted -- hylocomium feather moss
  Hylocomium alaskanum (Lesq. & James) Austin -- not accepted
  Hylocomium brevirostre (Brid.) Schimp. -- not accepted
  Hylocomium proliferum (Brid.) Lindb. -- not accepted
  Hylocomium pyrenaicum (Spruce) Lindb. -- not accepted
  Hylocomium splendens (Hedw.) Schimp. -- accepted -- splendid feather moss
  Hylocomium splendens ssp. giganteum Perss. ex Vitt -- not accepted
  Hylocomium splendens var. alaskanum (Lesq. & James) Limpr. -- not accepted
  Hylocomium splendens var. compactum (Lesq. & James) Macoun & Kindb. -- not accepted
  Hylocomium splendens var. obtusifolium (Geh.) Paris -- not accepted
  Hylocomium splendens var. tenue Sharp -- not accepted
  Hylocomium subpinnatum Lindb. -- not accepted
  Hylocomium umbratum (Hedw.) Schimp. -- not accepted
  Hypnaceae -- accepted
  Hypnum Hedw. -- accepted
  Hypnum abietinum Hedw. -- not accepted
  Hypnum acanthoneuron Schwägr. -- not accepted
  Hypnum acutum Mitt. -- not accepted
  Hypnum adnatum Hedw. -- not accepted
  Hypnum aduncum Hedw. -- not accepted
  Hypnum aeneum Mitt. -- not accepted
  Hypnum affine Hook. -- not accepted
  Hypnum alaskae Kindb. -- not accepted
  Hypnum albicans Hedw. -- not accepted
  Hypnum albulum Müll. Hal. -- not accepted
  Hypnum alleghaniense Müll. Hal. -- not accepted
  Hypnum alopecuroides Lam. ex Dubois -- not accepted
  Hypnum alpestre Hedw. -- not accepted
  Hypnum andoi A.J.E. Sm. -- accepted
  Hypnum angustifolium Hampe & Müll. Hal. -- not accepted
  Hypnum aquaticum Hampe -- not accepted
  Hypnum arcuatiforme Kindb. -- not accepted
  Hypnum arcuatum Lindb. -- not accepted
  Hypnum arcuatum var. americanum Renauld & Cardot -- not accepted
  Hypnum arenarium Lesq. -- not accepted
  Hypnum asperrimum Mitt. ex Müll. Hal. -- not accepted
  Hypnum attenuatum (Hedw.) Sm. -- not accepted
  Hypnum badium Hartm. -- not accepted
  Hypnum bambergeri Schimp. -- not accepted -- Bamberger's hypnum moss
  Hypnum bigelovii Sull. -- not accepted
  Hypnum blandowii F. Weber & D. Mohr -- not accepted
  Hypnum bolanderi Lesq. -- not accepted
  Hypnum borrerianum Spruce -- not accepted
  Hypnum brandegeei Austin -- not accepted
  Hypnum brevifolium Lindb. -- not accepted
  Hypnum bridelianum H.A. Crum, Steere & L.E. Anderson -- not accepted
  Hypnum caespitosum Wilson -- not accepted
  Hypnum californicum Lesq. -- not accepted
  Hypnum callichroum Brid. -- not accepted
  Hypnum cardotii Thér. -- not accepted
  Hypnum carolinianum Müll. Hal. -- not accepted
  Hypnum cavifolium Brid. -- not accepted
  Hypnum cespitans Müll. Hal. -- not accepted
  Hypnum chapmannii Duby -- not accepted
  Hypnum chlorophyllum Hornsch. -- not accepted
  Hypnum chryseum Schwägr. -- not accepted
  Hypnum chrysophyllum Brid. -- not accepted
  Hypnum chrysophyllum var. brevifolium Renauld & Cardot -- not accepted
  Hypnum ciliare Brid. -- not accepted
  Hypnum circinale Hook. -- not accepted
  Hypnum circulifolium Müll. Hal. & Kindb. -- not accepted
  Hypnum cirrosum Schwägr. -- not accepted
  Hypnum closteri Austin -- not accepted
  Hypnum collinum Schleich. ex Müll. Hal. -- not accepted
  Hypnum columbico-palustre Müll. Hal. & Kindb. -- not accepted
  Hypnum compactum (Hook.) Müll. Hal. -- not accepted
  Hypnum complexum (Mitt.) A. Jaeger -- not accepted
  Hypnum concinnum De Not. -- not accepted
  Hypnum confervoides Brid. -- not accepted
  Hypnum cordifolium Hedw. -- not accepted
  Hypnum cossonii Schimp. -- not accepted
  Hypnum crispifolium Hook. -- not accepted
  Hypnum crista-castrensis Hedw. -- not accepted
  Hypnum cupressiforme Hedw. -- accepted
  Hypnum cupressiforme var. cupressiforme Hedw. -- accepted
  Hypnum cupressiforme var. ericetorum Schimp. -- not accepted
  Hypnum cupressiforme var. filiforme Brid. -- accepted -- filiform hypnum moss
  Hypnum cupressiforme var. julaceum Brid. -- accepted
  Hypnum cupressiforme var. lacunosum Brid. -- accepted
  Hypnum cupressiforme var. mammillatum Brid. -- not accepted
  Hypnum cupressiforme var. subjulaceum Molendo -- accepted
  Hypnum curtum Lindb. -- not accepted
  Hypnum curvifolium Hedw. -- not accepted -- curveleaf hypnum moss
  Hypnum cuspidatum Hedw. -- not accepted
  Hypnum cyclophyllotum Holz. -- not accepted
  Hypnum delicatulum Hedw. -- not accepted
  Hypnum demissum Wilson -- not accepted
  Hypnum denticulatum Hedw. -- not accepted
  Hypnum deplanatum Bruch & Schimp. ex Sull. -- not accepted
  Hypnum depressulum Müll. Hal. -- not accepted
  Hypnum dieckei Renauld & Cardot -- not accepted
  Hypnum dilatatum Wilson -- not accepted
  Hypnum diminutivum Hampe -- not accepted
  Hypnum dimorphum Brid. -- not accepted
  Hypnum donnianum Sm. -- not accepted
  Hypnum eugyrium var. miquelonense Renauld & Cardot -- not accepted
  Hypnum exannulatum Schimp. -- not accepted
  Hypnum falcatum Brid. -- not accepted
  Hypnum fauriei Cardot -- not accepted
  Hypnum filicinum Hedw. -- not accepted
  Hypnum filiforme Kindb. -- not accepted
  Hypnum fitz-geraldii Renauld -- not accepted
  Hypnum fluitans Hedw. -- not accepted
  Hypnum frigidum Müll. Hal. -- not accepted
  Hypnum fujiyamae (Broth.) Paris -- not accepted
  Hypnum fulgescens Mitt. ex Müll. Hal. -- not accepted
  Hypnum fulvum Hook. & Wilson -- not accepted
  Hypnum giganteum Schimp. -- not accepted
  Hypnum goulardii Schimp. -- not accepted
  Hypnum graminicolor Brid. -- not accepted
  Hypnum haldanianum Grev. -- not accepted
  Hypnum halleri Hedw. -- not accepted
  Hypnum hamulosum Schimp. -- not accepted
  Hypnum henonii Duby -- not accepted
  Hypnum hians Hedw. -- not accepted
  Hypnum hillebrandii Lesq. -- not accepted
  Hypnum hirtellum var. furcatum Müll. Hal. -- not accepted
  Hypnum hispidulum Brid. -- not accepted
  Hypnum holmenii Ando -- not accepted
  Hypnum humile P. Beauv. -- not accepted
  Hypnum illecebrum Hedw. -- not accepted
  Hypnum implexum Renauld & Cardot -- not accepted
  Hypnum imponens Hedw. -- not accepted
  Hypnum incurvatum Schrad. ex Brid. -- not accepted
  Hypnum intricatum (Hedw.) Müll. Hal. -- not accepted
  Hypnum jungermannioides Brid. -- not accepted
  Hypnum jutlandicum Holmen & E. Warncke -- accepted
  Hypnum laetum Brid. -- not accepted
  Hypnum lescurii Sull. -- not accepted
  Hypnum leucocladulum Müll. Hal. -- not accepted
  Hypnum lindbergii Mitt. -- not accepted -- Lindberg's hypnum moss
  Hypnum loreum Hedw. -- not accepted
  Hypnum lucens Hedw. -- not accepted
  Hypnum luridum Hedw. -- not accepted
  Hypnum lycopodioides var. lapponicum Norrl. -- not accepted
  Hypnum macounii Kindb. -- not accepted
  Hypnum malacocladum Cardot & Thér. -- not accepted
  Hypnum marylandicum Müll. Hal. -- not accepted
  Hypnum maximowiczii G.G. Borshch. -- not accepted
  Hypnum micans Sw. -- not accepted
  Hypnum microphyllum Hedw. -- not accepted
  Hypnum minutissimum Sull. & Lesq. -- not accepted
  Hypnum minutulum Hedw. -- not accepted
  Hypnum molle Hedw. -- not accepted
  Hypnum molle ssp. bestii Renauld & Bryhn -- not accepted
  Hypnum molluscum Hedw. -- not accepted
  Hypnum montanum Wilson -- not accepted
  Hypnum muehlenbeckii Schimp. ex Hartm. -- not accepted
  Hypnum myosuroides Brid. -- not accepted
  Hypnum neckeroides Hook. -- not accepted
  Hypnum nemorosum Koch ex Brid. -- not accepted
  Hypnum nevadense Lesq. -- not accepted
  Hypnum nigrescens Sw. ex Hedw. -- not accepted
  Hypnum nitens Hedw. -- not accepted
  Hypnum nitidulum Wahlenb. -- not accepted
  Hypnum noterophilum Sull. & Lesq. -- not accepted
  Hypnum novae-angliae Sull. & Lesq. -- not accepted
  Hypnum nuttallii Wilson -- not accepted
  Hypnum obtusifolium (Turner) Brid. -- not accepted
  Hypnum occidentale Sull. & Lesq. -- not accepted
  Hypnum ochraceum Turner ex Wilson -- not accepted
  Hypnum oedipodium Mitt. -- not accepted
  Hypnum orbicularicordatum Renauld & Cardot -- not accepted
  Hypnum oreganum Sull. -- not accepted
  Hypnum ornellanum Molendo -- not accepted
  Hypnum pallescens (Hedw.) P. Beauv. -- not accepted
  Hypnum pallescens var. protuberans (Brid.) Austin -- not accepted
  Hypnum patulum Hedw. -- not accepted
  Hypnum piliferum Hedw. -- not accepted
  Hypnum planum Brid. -- not accepted
  Hypnum plicatulum (Lindb.) A. Jaeger -- not accepted
  Hypnum plumosum Hedw. -- not accepted
  Hypnum polare Lindb. -- not accepted
  Hypnum populeum Hedw. -- not accepted
  Hypnum praelongum Hedw. -- not accepted
  Hypnum pratense Koch ex Spruce -- not accepted
  Hypnum procerrimum Molendo -- not accepted
  Hypnum protensum Brid. -- not accepted
  Hypnum protensum Michx. -- not accepted
  Hypnum pseudoarcticum Kindb. -- not accepted
  Hypnum pseudomontanum Kindb. -- not accepted
  Hypnum pseudopratense Kindb. -- not accepted
  Hypnum pseudosarmentosum Cardot & Thér. -- not accepted
  Hypnum pseudosilesiacum (Schimp.) Lesq. & James -- not accepted
  Hypnum pseudostramineum Müll. Hal. -- not accepted
  Hypnum pulchellum Hedw. -- not accepted
  Hypnum purum Hedw. -- not accepted
  Hypnum pyrenaicum Spruce -- not accepted
  Hypnum radicale P. Beauv. -- not accepted
  Hypnum radicosum Mitt. -- not accepted
  Hypnum ravaudii Boulay -- not accepted
  Hypnum recognitum Hedw. -- not accepted
  Hypnum recurvatum (Lindb. & Arnell) Kindb. -- not accepted -- recurved hypnum moss
  Hypnum reflexum Starke -- not accepted
  Hypnum renauldii Kindb. -- not accepted
  Hypnum reptile Michx. -- not accepted
  Hypnum revolutum (Mitt.) Lindb. -- not accepted -- revolute hypnum moss
  Hypnum revolutum var. dolomiticum (Milde) Mönk. -- not accepted
  Hypnum revolutum var. ravaudii (Boulay) Ando -- not accepted
  Hypnum revolutum var. revolutum (Mitt.) Lindb. -- not accepted
  Hypnum revolvens Sw. -- not accepted
  Hypnum riparium Hedw. -- not accepted
  Hypnum robustum Hook. -- not accepted
  Hypnum rostratum (Hedw.) P. Beauv. -- not accepted
  Hypnum ruderale Brid. -- not accepted
  Hypnum rufescens Dicks. ex Brid. -- not accepted
  Hypnum rugelii Müll. Hal. -- not accepted
  Hypnum rugosum Hedw. -- not accepted
  Hypnum rutabulum Hedw. -- not accepted
  Hypnum rutabulum var. brevirostre Brid. -- not accepted
  Hypnum rutabulum var. campestre Müll. Hal. -- not accepted
  Hypnum ruthenicum Weinm. -- not accepted
  Hypnum salebrosum Hoffm. ex F. Weber & D. Mohr -- not accepted
  Hypnum salebrosum var. capillaceum F. Weber & D. Mohr -- not accepted
  Hypnum sarmentosum Wahlenb. -- not accepted
  Hypnum schistocalyx Müll. Hal. -- not accepted
  Hypnum schreberi Willd. ex Brid. -- not accepted
  Hypnum scitum P. Beauv. -- not accepted
  Hypnum scorpioides Hedw. -- not accepted
  Hypnum sequoieti Müll. Hal. -- not accepted
  Hypnum serpens Hedw. -- not accepted
  Hypnum serpens var. compactum Hook. -- not accepted
  Hypnum serrulatum Hedw. -- not accepted
  Hypnum sibiricum Müll. Hal. -- not accepted
  Hypnum smithii Hedw. -- not accepted
  Hypnum sommerfeltii Myrin -- not accepted
  Hypnum sordidum Müll. Hal. -- not accepted
  Hypnum spiniforme Hedw. -- not accepted
  Hypnum splendens Hedw. -- not accepted
  Hypnum squarrosum Hedw. -- not accepted
  Hypnum starkei Brid. -- not accepted
  Hypnum stellatum Hedw. -- not accepted
  Hypnum stoloniferum Hook. -- not accepted
  Hypnum stramineum Dicks. ex Brid. -- not accepted
  Hypnum styriacum Limpr. -- not accepted
  Hypnum subcomplexum Kindb. -- not accepted
  Hypnum subeugyrium Renauld & Cardot -- not accepted
  Hypnum subeugyrium var. occidentale Cardot & Thér. -- not accepted
  Hypnum subimponens Lesq. -- not accepted
  Hypnum subplicatile Limpr. -- not accepted
  Hypnum subrectifolium Brid. -- not accepted
  Hypnum symmetricum (Renauld & Cardot) Renauld & Cardot -- not accepted
  Hypnum tamariscinum Hedw. -- not accepted
  Hypnum tectorum A. Braun ex Brid. -- not accepted
  Hypnum tenerum Sw. -- not accepted
  Hypnum tomentosum Hedw. -- not accepted
  Hypnum torrentis Müll. Hal. & Kindb. -- not accepted
  Hypnum touretii Brid. -- not accepted
  Hypnum trifarium F. Weber & D. Mohr -- not accepted
  Hypnum triquetrum Hedw. -- not accepted
  Hypnum triste (Ces.) Müll. Hal. -- not accepted
  Hypnum turfaceum Lindb. -- not accepted
  Hypnum turgens (Müll. Hal.) Paris -- not accepted
  Hypnum turgescens T. Jensen -- not accepted
  Hypnum umbratum Hedw. -- not accepted
  Hypnum uncinatum Hedw. -- not accepted
  Hypnum uncinatum ssp. moseri (Kindb.) Kindb. -- not accepted
  Hypnum uncinatum ssp. orthothecioides Lindb. -- not accepted
  Hypnum uncinatum var. symmetricum (Renauld & Cardot) Renauld & Cardot -- not accepted
  Hypnum undulatum Hedw. -- not accepted
  Hypnum vaucheri Lesq. -- not accepted -- Vaucher's hypnum moss
  Hypnum velutinum Hedw. -- not accepted
  Hypnum vesiculare Schwägr. -- not accepted
  Hypnum virginianum Brid. -- not accepted
  Hypnum viticulosum (Hedw.) With. -- not accepted
  Hypnum wahlenbergii F. Weber & D. Mohr -- not accepted
  Hypnum whippleanum Sull. -- not accepted
  Hypnum wrightii (Sull.) Sull. -- not accepted
  Hypopterygiaceae -- accepted
  Hypopterygium Brid. -- accepted
  Hypopterygium canadense Kindb. -- not accepted
  Hypopterygium fauriei Besch. -- not accepted -- Faurie's hypopterygium moss
  Hypopterygium flavolimbatum Müll. Hal. -- accepted
  Imbribryum N. Pedersen -- accepted
  Imbribryum alpinum (Huds. ex With.) N. Pedersen -- accepted
  Imbribryum gemmiparum (De Not.) J.R. Spence -- accepted
  Imbribryum microchaeton (Hampe) J.R. Spence -- accepted
  Imbribryum mildeanum (Jur.) J.R. Spence -- accepted
  Imbribryum miniatum (Lesq.) J.R. Spence -- accepted
  Imbribryum muehlenbeckii (Bruch & Schimp.) N. Pedersen -- accepted
  Isopterygiopsis Z. Iwats. -- accepted
  Isopterygiopsis alpicola (Lindb.) Hedenäs -- accepted
  Isopterygiopsis muelleriana (Schimp.) Z. Iwats. -- accepted -- Mueller's isopterygiopsis moss
  Isopterygiopsis pulchella (Hedw.) Z. Iwats. -- accepted
  Isopterygium Mitt. -- accepted
  Isopterygium alpicola (Lindb.) Nyholm -- not accepted
  Isopterygium alternans Cardot -- not accepted
  Isopterygium cuspidifolium Cardot -- not accepted
  Isopterygium deplanatum (Bruch & Schimp. ex Sull.) Mitt. -- not accepted
  Isopterygium distichaceum (Mitt.) A. Jaeger -- not accepted
  Isopterygium drummondii H.A. Crum, Steere & L.E. Anderson -- not accepted
  Isopterygium elegans (Brid.) Lindb. -- not accepted
  Isopterygium fulvum (A. Jaeger) Kindb. -- not accepted
  Isopterygium geophilum (Austin) A. Jaeger -- not accepted
  Isopterygium groutii (Cardot & Thér.) Grout -- not accepted
  Isopterygium homomallifolium Redf. -- not accepted
  Isopterygium latebricola (Schimp.) Delogne -- not accepted
  Isopterygium micans (Sw.) Kindb. -- not accepted
  Isopterygium micans var. latifolium (Grout) Schornh. -- not accepted
  Isopterygium micans var. minus (Grout) H.A. Crum & L.E. Anderson -- not accepted
  Isopterygium muellerianum (Schimp.) A. Jaeger -- not accepted
  Isopterygium piliferum (Sw.) Loeske -- not accepted
  Isopterygium pulchellum (Hedw.) A. Jaeger -- not accepted
  Isopterygium pulchellum var. nitidulum (Wahlenb.) G. Roth -- not accepted
  Isopterygium seligeri (Brid.) Dixon -- not accepted
  Isopterygium striatellum (Brid.) Loeske -- not accepted
  Isopterygium subfalcatum (Austin) A. Jaeger -- not accepted
  Isopterygium taxirameum (Mitt.) A. Jaeger -- not accepted
  Isopterygium tenerifolium Mitt. -- accepted
  Isopterygium tenerum (Sw.) Mitt. -- accepted
  Isopterygium turfaceum (Lindb.) Lindb. -- not accepted
  Isothecium Brid. -- accepted
  Isothecium acuticuspis (Mitt.) Macoun & Kindb. -- not accepted
  Isothecium aggregatum (Mitt.) A. Jaeger -- not accepted
  Isothecium alopecuroides (Lam. ex Dubois) Isov. -- accepted
  Isothecium aureum Spruce -- not accepted
  Isothecium brachycladon Kindb. -- not accepted
  Isothecium brewerianum (Lesq.) Kindb. -- not accepted
  Isothecium cardotii Kindb. -- accepted
  Isothecium cristatum (Hampe) H. Rob. -- accepted
  Isothecium elegans Brid. -- not accepted
  Isothecium howei Kindb. -- not accepted
  Isothecium hylocomioides (Kindb.) Kindb. -- not accepted
  Isothecium myosuroides Brid. -- accepted
  Isothecium myurellum Kindb. -- not accepted
  Isothecium myuroides Kindb. -- not accepted
  Isothecium myurum Brid. -- not accepted
  Isothecium obtusatulum Kindb. -- not accepted
  Isothecium occidentale (Kindb.) R.S. Williams -- not accepted
  Isothecium polyanthum (Hedw.) Spruce -- not accepted
  Isothecium schleicheri Schimp. -- not accepted
  Isothecium spiculiferum (Mitt.) Macoun & Kindb. -- not accepted
  Isothecium stoloniferum Brid. -- accepted
  Isothecium tenerum (Sw.) Brid. -- not accepted
  Isothecium thamnioides Kindb. -- not accepted
  Isothecium trachypodium Funck ex Brid. -- not accepted
  Iwatsukiella W.R. Buck & H.A. Crum -- accepted
  Iwatsukiella leucotricha (Mitt.) W.R. Buck & H.A. Crum -- accepted
  Jaegerina Müll. Hal. -- accepted
  Jaegerina scariosa (Lorentz) Arzeni -- accepted
  Jaegerinopsis Broth. -- not accepted
  Jaegerinopsis scariosa (Lorentz) Broth. -- not accepted
  Jaegerinopsis squarrosa E. Britton -- not accepted
  Kindbergia Ochyra -- accepted
  Kindbergia brittoniae (Grout) Ochyra -- not accepted
  Kindbergia oregana (Sull.) Ochyra -- accepted
  Kindbergia praelonga (Hedw.) Ochyra -- accepted
  Lasia P. Beauv. -- not accepted
  Lembophyllaceae -- accepted
  Leptobryum (Schimp.) Wilson -- accepted
  Leptobryum pyriforme (Hedw.) Wilson -- accepted
  Leptodictyum (Schimp.) Warnst. -- accepted
  Leptodictyum brevipes (Cardot & Thér.) Broth. -- not accepted
  Leptodictyum humile (P. Beauv.) Ochyra -- not accepted
  Leptodictyum laxirete (Cardot & Thér.) Broth. -- not accepted
  Leptodictyum riparium (Hedw.) Warnst. -- accepted -- streamside leptodictyum moss
  Leptodictyum riparium var. abbreviatum (Schimp.) Grout -- not accepted
  Leptodictyum riparium var. elongatum (Schimp.) Warnst. -- not accepted
  Leptodictyum riparium var. flaccidum (Lesq. & James) Grout -- not accepted
  Leptodictyum sipho (P. Beauv.) Broth. -- not accepted
  Leptodictyum vacillans (Sull.) Broth. -- not accepted
  Leptodictyum wallacei B.H. Allen & Magill -- accepted
  Leptodon D. Mohr -- accepted
  Leptodon ohioensis Sull. -- not accepted
  Leptodon smithii (Hedw.) F. Weber & D. Mohr -- accepted -- Smith's leptodon moss
  Leptodon trichomitrius (Hedw.) Sull. -- not accepted
  Leptodon trichomitrius var. floridanus (Lindb.) Grout -- not accepted
  Leptodon trichomitrius var. immersus (Sull. & Lesq.) Sull. -- not accepted
  Leptodontaceae -- accepted
  Leptohymenium Schwägr. -- accepted
  Leptohymenium cristatum Hampe -- not accepted
  Leptohymenium sharpii (H.A. Crum & L.E. Anderson) W.R. Buck & H.A. Crum -- accepted -- Sharp's leptohymenium moss
  Leptopterigynandrum Müll. Hal. -- accepted
  Leptopterigynandrum austroalpinum Müll. Hal. -- accepted
  Leptostomopsis (Müll. Hal. ex Broth.) J.R. Spence & H.P. Ramsay -- accepted
  Leptostomopsis nivea (Besch.) J.R. Spence -- accepted
  Leptostomopsis systylia (Müll. Hal.) J.R. Spence & H.P. Ramsay -- accepted
  Lescuraea Schimp. -- accepted
  Lescuraea arizonae (R.S. Williams) P.S. Wilson & D.H. Norris -- not accepted -- Arizona lescuraea moss
  Lescuraea atricha (Kindb.) E. Lawton -- not accepted
  Lescuraea baileyi (Best & Grout) E. Lawton -- not accepted
  Lescuraea iliamniana E. Lawton -- not accepted
  Lescuraea incurvata (Hedw.) E. Lawton -- not accepted
  Lescuraea incurvata var. gigantea E. Lawton -- not accepted
  Lescuraea julacea Besch. & Cardot -- not accepted
  Lescuraea patens Lindb. -- not accepted
  Lescuraea radicosa (Mitt.) Mönk. -- not accepted
  Lescuraea radicosa var. compacta (Best) E. Lawton -- not accepted
  Lescuraea saviana (De Not.) E. Lawton -- not accepted
  Lescuraea saxicola (Schimp.) Milde -- accepted
  Lescuraea stenophylla (Renauld & Cardot) Kindb. -- not accepted
  Lescuraea striata var. saxicola Schimp. -- not accepted
  Leskea Hedw. -- accepted
  Leskea acuminata Hedw. -- not accepted
  Leskea adnata Michx. -- not accepted
  Leskea arenicola Best -- not accepted
  Leskea asprella Schimp. -- not accepted
  Leskea attenuata Hedw. -- not accepted
  Leskea austinii Sull. -- not accepted
  Leskea australis Sharp -- accepted
  Leskea blandowii (F. Weber & D. Mohr) Mitt. -- not accepted
  Leskea cardotii Kindb. -- not accepted
  Leskea chrysea var. cochleariifolia Lindb. -- not accepted
  Leskea complanata Hedw. -- not accepted
  Leskea dendroides Hedw. -- not accepted
  Leskea denticulata Sull. -- not accepted
  Leskea fendleri Sull. -- not accepted
  Leskea flaccida Brid. -- not accepted
  Leskea gracilescens Hedw. -- accepted
  Leskea incurvata Hedw. -- not accepted
  Leskea intricata Hartm. -- not accepted
  Leskea involvens Hedw. -- not accepted
  Leskea julacea Schwägr. -- not accepted
  Leskea latebricola (Schimp.) Wilson -- not accepted
  Leskea leucostega Brid. -- not accepted
  Leskea mexicana Besch. -- not accepted
  Leskea microcarpa Schimp. ex Sull. -- not accepted
  Leskea nervosa (Brid.) Myrin -- not accepted
  Leskea obscura Hedw. -- accepted
  Leskea obtusa Renauld & Cardot -- not accepted
  Leskea pallescens Hedw. -- not accepted
  Leskea parvula Hampe -- not accepted
  Leskea pellucinervis Mitt. -- not accepted
  Leskea pilifera Sw. -- not accepted
  Leskea polyantha Hedw. -- not accepted
  Leskea polycarpa Hedw. -- accepted
  Leskea polycarpa var. paludosa (Hedw.) Schimp. -- not accepted
  Leskea pulchella Hedw. -- not accepted
  Leskea pulvinata Wahlenb. -- not accepted
  Leskea recurvans Michx. -- not accepted
  Leskea rostrata Hedw. -- not accepted
  Leskea rupestris Berggr. -- not accepted
  Leskea saviana De Not. -- not accepted
  Leskea seligeri Brid. -- not accepted
  Leskea sericea Hedw. -- not accepted
  Leskea smithii Sw. -- not accepted
  Leskea striatella Brid. -- not accepted
  Leskea subpinnata Brid. -- not accepted
  Leskea subtilis Hedw. -- not accepted
  Leskea tenuirostris Bruch & Schimp. ex Sull. -- not accepted
  Leskea trichomanoides Hedw. -- not accepted
  Leskea tristis Ces. -- not accepted
  Leskea varia Hedw. -- not accepted
  Leskeaceae -- accepted
  Leskeella (Limpr.) Loeske -- accepted
  Leskeella arizonae (R.S. Williams) Flowers -- not accepted
  Leskeella nervosa (Brid.) Loeske -- accepted
  Leskeella nervosa var. sibirica (Arnell) Broth. -- not accepted
  Leucodon Schwägr. -- accepted
  Leucodon andrewsianus (H.A. Crum & L.E. Anderson) W.D. Reese & L.E. Anderson -- accepted
  Leucodon brachypus Brid. -- accepted
  Leucodon brachypus var. andrewsianus H.A. Crum & L.E. Anderson -- not accepted -- Andrews' lecodon moss
  Leucodon domingensis (Spreng.) Mitt. -- not accepted
  Leucodon geniculatus Mitt. -- not accepted
  Leucodon julaceus (Hedw.) Sull. -- accepted
  Leucodon pohlii Schwägr. -- not accepted
  Leucodontaceae -- accepted
  Leucodontopsis floridana (Austin) E. Britton -- not accepted
  Leucodontopsis geniculata (Mitt.) H.A. Crum & Steere -- not accepted
  Leucolepis Lindb. -- accepted -- leucolepis umbrella moss
  Leucolepis acanthoneura (Schwägr.) Lindb. -- accepted
  Leucolepis menziesii (Hook.) Steere -- not accepted
  Limbella (Müll. Hal.) Broth. -- accepted
  Limbella fryei (R.S. Williams) Ochyra -- accepted -- Frye's limbella moss
  Limnobium Schimp. -- not accepted
  Limnobium bestii (Renauld & Bryhn) Holz. -- not accepted
  Limnobium cochleariifolium Venturi ex De Not. -- not accepted
  Limnobium duriusculum De Not. -- not accepted
  Limnobium eugyrium Schimp. -- not accepted
  Limnobium montanum (Lindb.) Kindb. -- not accepted
  Limnobium norvegicum Schimp. -- not accepted
  Limnobium pseudo-arcticum (Kindb.) Kindb. -- not accepted
  Limnobium pseudomontanum (Kindb.) Kindb. -- not accepted
  Limnobium submolle Kindb. -- not accepted
  Limnobium viridulum (Lindb.) Kindb. -- not accepted
  Limprichtia Loeske -- not accepted
  Limprichtia cossonii (Schimp.) L.E. Anderson, H.A. Crum & W.R. Buck -- not accepted -- Cosson's limprichtia moss
  Limprichtia revolvens (Sw.) Loeske -- not accepted
  Lindbergia Kindb. -- accepted
  Lindbergia brachyptera (Mitt.) Kindb. -- accepted
  Lindbergia brachyptera var. austinii (Sull.) Grout -- not accepted
  Lindbergia mexicana (Besch.) Cardot -- accepted -- Mexican lindbergia moss
  Loeskeobryum M. Fleisch. ex Broth. -- accepted
  Loeskeobryum brevirostre (Brid.) M. Fleisch. -- accepted
  Loeskypnum H.K.G. Paul -- accepted
  Loeskypnum badium (Hartm.) H.K.G. Paul -- accepted
  Loeskypnum wickesiae (Grout) Tuom. -- accepted -- Wickes' loeskypnum moss
  Macouniella californica (Sull. ex Lesq.) Kindb. -- not accepted
  Macrocoma (Hornsch. ex Müll. Hal.) Grout -- accepted
  Macrocoma tenuis (Hook. & Grev.) Vitt -- accepted
  Macrocoma tenuis ssp. sullivantii (Müll. Hal.) Vitt -- accepted
  Macromitrium Brid. -- accepted
  Macromitrium richardii Schwägr. -- accepted -- Richard's macromitrium moss
  Macromitrium sullivantii Müll. Hal. -- not accepted
  Macromitrium tomentosum Hornsch. -- not accepted
  Macromitrium tumidulum Mitt. -- not accepted
  Meesia Hedw. -- accepted
  Meesia dealbata Hedw. -- not accepted
  Meesia demissa (Hook.) Hoppe & Hornsch. -- not accepted
  Meesia longiseta Hedw. -- accepted
  Meesia triquetra (L. ex Jolycl.) Ångstr. -- accepted
  Meesia uliginosa Hedw. -- accepted
  Meesiaceae -- accepted
  Meiotheciopsis Broth. -- not accepted
  Meiotheciopsis commutata (Müll. Hal.) W.R. Buck -- not accepted
  Meiothecium tenerum Mitt. -- not accepted
  Metaneckera menziesii (Drumm.) Steere -- not accepted -- Menzies' metaneckera moss
  Meteoriaceae -- accepted
  Meteoriopsis patula (Hedw.) Broth. -- not accepted
  Meteorium pendulum Sull. -- not accepted
  Meteorium scariosum Lorentz -- not accepted
  Microthamnium diminutivum (Hampe) A. Jaeger -- not accepted
  Mielichhoferia Nees & Hornsch. -- accepted -- copper moss
  Mielichhoferia elongata (Hoppe & Hornsch.) Nees & Hornsch. -- accepted
  Mielichhoferia macrocarpa (Hook.) Bruch & Schimp. -- not accepted -- waterfall copper moss
  Mielichhoferia mielichhoferiana (Funck) Loeske -- accepted -- Mielichhofer's copper moss
  Mielichhoferia shevockii (A.J. Shaw) A.J. Shaw -- accepted
  Mielichhoferia tehamensis Showers -- not accepted -- Tehama copper moss
  Mielichhoferiaceae -- accepted
  Mittenothamnium diminutivum (Hampe) E. Britton -- not accepted
  Mittenothamnium sharpii (H.A. Crum & L.E. Anderson) W.R. Buck -- not accepted
  Mittenothamnium thelistegum (Müll. Hal.) Cardot -- not accepted
  Mniaceae -- accepted
  Mniobryum vexans Limpr. -- not accepted
  Mniobryum wahlenbergii (F. Weber & D. Mohr) Jenn. -- not accepted
  Mnium Hedw. -- accepted -- mnium calcareous moss
  Mnium affine var. ciliare Müll. Hal. -- not accepted
  Mnium affine var. rugicum (Laurer) Bruch & Schimp. -- not accepted
  Mnium ambiguum H. Müll. -- not accepted -- ambiguous calcareous moss
  Mnium andrewsianum Steere -- not accepted
  Mnium arcticum Bruch & Schimp. -- not accepted
  Mnium arizonicum J.J. Amann -- accepted -- Arizona calcareous moss
  Mnium bimum Schreb. -- not accepted
  Mnium blyttii Bruch & Schimp. -- accepted -- Blytt's calcareous moss
  Mnium caespiticium var. warneum Röhl. -- not accepted
  Mnium carolinianum L.E. Anderson -- not accepted
  Mnium cinclidioides Huebener -- not accepted
  Mnium crudum Hedw. -- not accepted
  Mnium cuspidatum Hedw. -- not accepted
  Mnium cyclophyllum Schwägr. -- not accepted
  Mnium drummondii Bruch & Schimp. -- not accepted
  Mnium ellipticum Brid. -- not accepted
  Mnium flagellare Sull. & Lesq. -- not accepted
  Mnium fontanum Hedw. -- not accepted
  Mnium glabrescens Kindb. -- not accepted
  Mnium gracile (T.J. Kop.) H.A. Crum & L.E. Anderson -- not accepted
  Mnium hornum Hedw. -- accepted -- horn calcareous moss
  Mnium hymenophylloides Huebener -- not accepted
  Mnium hymenophyllum Bruch & Schimp. -- not accepted
  Mnium insigne Mitt. -- not accepted
  Mnium koponenii H.A. Crum -- not accepted
  Mnium lanatum P. Beauv. -- not accepted
  Mnium longirostre Brid. -- not accepted
  Mnium lycopodioides Schwägr. -- accepted
  Mnium magnifolium Horik. -- not accepted
  Mnium marchicum Hedw. -- not accepted
  Mnium marginatum (Dicks. ex With.) P. Beauv. -- accepted -- olivegreen calcareous moss
  Mnium medium Bruch & Schimp. -- not accepted
  Mnium menziesii (Hook.) Müll. Hal. -- not accepted
  Mnium nudum R.S. Williams -- not accepted
  Mnium palustre Hedw. -- not accepted
  Mnium pseudopunctatum Bruch & Schimp. -- not accepted
  Mnium pseudotriquetrum Hedw. -- not accepted
  Mnium punctatum Hedw. -- not accepted
  Mnium punctatum var. appalachianum (T.J. Kop.) H.A. Crum & L.E. Anderson -- not accepted
  Mnium punctatum var. elatum Schimp. -- not accepted
  Mnium roellii Broth. -- not accepted
  Mnium roseum Hedw. -- not accepted
  Mnium rostratum Schrad. -- not accepted
  Mnium serratum Schrad. ex Brid. -- not accepted
  Mnium sphaericarpon Hedw. -- not accepted
  Mnium spiniforme (Hedw.) Müll. Hal. -- not accepted
  Mnium spinosum (Voit) Schwägr. -- accepted -- spinosum calcareous moss
  Mnium spinulosum Bruch & Schimp. -- accepted -- largetooth calcareous moss
  Mnium stellare Hedw. -- accepted -- stellar calcareous moss
  Mnium tetragonum Hedw. -- not accepted
  Mnium thomsonii Schimp. -- accepted -- Thomson's calcareous moss
  Mnium triquetrum L. ex Jolycl. -- not accepted
  Mnium turbinatum Hedw. -- not accepted
  Mnium turgidum Wahlenb. -- not accepted
  Mnium undulatum Hedw. -- not accepted
  Mnium venustum Mitt. -- not accepted
  Myrinia Schimp. -- accepted
  Myrinia pulvinata (Wahlenb.) Schimp. -- accepted
  Myriniaceae -- accepted
  Myurella Schimp. -- accepted
  Myurella careyana Sull. -- not accepted
  Myurella julacea (Schwägr.) Schimp. -- accepted
  Myurella sibirica (Müll. Hal.) Reimers -- accepted -- Siberian myurella moss
  Myurella sibirica var. tenella (Habeeb) H.A. Crum, Steere & L.E. Anderson -- not accepted
  Myurella tenerrima (Brid.) Lindb. -- accepted
  Myuroclada Besch. -- accepted
  Myuroclada concinna Besch. -- not accepted
  Myuroclada maximowiczii (G.G. Borshch.) Steere & W.B. Schofield -- accepted -- Maximowicz's myuroclada moss
  Neckera Hedw. -- accepted
  Neckera abietina Hook. -- not accepted
  Neckera besseri (Lobarzewski) Jur. -- accepted
  Neckera beyrichii Schwägr. -- not accepted
  Neckera breviseta Hook. & Wilson -- not accepted
  Neckera californica Hook. & Arn. -- not accepted
  Neckera capillacea (With.) Müll. Hal. -- not accepted
  Neckera cladorrhizans Hedw. -- not accepted
  Neckera commutata Müll. Hal. -- not accepted
  Neckera complanata (Hedw.) Huebener -- accepted
  Neckera curtipendula Hedw. -- not accepted
  Neckera disticha Hedw. -- not accepted
  Neckera domingensis Spreng. -- not accepted
  Neckera douglasii Hook. -- accepted -- Douglas' neckera moss
  Neckera filiformis Hedw. -- not accepted
  Neckera leucoclada Müll. Hal. -- not accepted
  Neckera macropoda Hedw. -- not accepted
  Neckera menziesii Drumm. -- accepted
  Neckera minor (Hedw.) P. Beauv. -- not accepted
  Neckera oligocarpa Bruch -- not accepted
  Neckera pennata Hedw. -- accepted
  Neckera seductrix Hedw. -- not accepted
  Neckera splachnoides Sm. -- not accepted
  Neckera sullivantii Müll. Hal. -- not accepted
  Neckera undulata Hedw. -- not accepted
  Neckera viticulosa Hedw. -- not accepted
  Neckera viticulosa var. minor Hedw. -- not accepted
  Neckeraceae -- accepted
  Neckeropsis Reichardt -- accepted
  Neckeropsis disticha (Hedw.) Kindb. -- accepted
  Neckeropsis undulata (Hedw.) Reichardt -- accepted -- undulate neckeropsis moss
  Neckeropsis undulata (Hedw.) Kindb. ex J. A. Allen -- not accepted
  Neodicladiella pendula (Sull.) W.R. Buck -- not accepted
  Neomacounia Ireland -- accepted
  Neomacounia nitida (Lindb.) Ireland -- accepted
  Nogopterium Crosby & W.R. Buck -- accepted
  Nogopterium gracile (Hedw.) Crosby & W.R. Buck -- accepted
  Nyholmiella gymnostoma (Bruch ex Brid.) Holmen & E. Warncke -- not accepted
  Nyholmiella obtusifolia (Schrad. ex Brid.) Holmen & E. Warncke -- accepted
  Ochyraea Vána -- not accepted
  Ochyraea alpestris (Hedw.) Ignatov & Ignatova -- not accepted
  Ochyraea cochleariifolia (Venturi ex De Not.) Ignatov & Ignatova -- not accepted
  Ochyraea duriuscula (De Not.) Ignatov & Ignatova -- not accepted
  Ochyraea mollis (Hedw.) Ignatov -- not accepted
  Ochyraea montana (Lindb.) Ignatov & Ignatova -- not accepted
  Ochyraea norvegica (Schimp.) Ignatov & Ignatova -- not accepted
  Ochyraea smithii (Sw.) Ignatov & Ignatova -- not accepted
  Orthodontiaceae -- accepted
  Orthodontium Schwägr. -- accepted
  Orthodontium gracile (Wilson) Schwägr. ex Bruch & Schimp. -- accepted
  Orthodontium pellucens (Hook.) Bruch & Schimp. -- accepted
  Orthodontium pumilum var. fallax (Bruch ex Brid.) J. Kickx f. -- not accepted
  Orthopixis P. Beauv. -- not accepted
  Orthothecium Schimp. -- accepted
  Orthothecium acuminatum Bryhn -- accepted -- acuminate orthothecium moss
  Orthothecium binervulum Molendo -- not accepted
  Orthothecium chryseum (Schwägr.) Schimp. -- accepted
  Orthothecium chryseum var. chryseum (Schwägr.) Schimp. -- accepted
  Orthothecium chryseum var. cochleariifolium (Lindb.) Limpr. -- accepted
  Orthothecium diminutivum (Grout) H.A. Crum, Steere & L.E. Anderson -- not accepted -- diminutive orthothecium moss
  Orthothecium intricatum (Hartm.) Schimp. -- accepted -- intricate orthothecium moss
  Orthothecium rufescens (Dicks. ex Brid.) Schimp. -- accepted
  Orthothecium strictum Lorentz -- accepted
  Orthotrichaceae -- accepted
  Orthotrichum Hedw. -- accepted
  Orthotrichum affine Schrad. ex Brid. -- not accepted
  Orthotrichum affine ssp. praemorsum (Venturi) Kindb. -- not accepted
  Orthotrichum affine var. fallax (Bruch ex Brid.) Hampe -- not accepted
  Orthotrichum alpestre Hornsch. ex Bruch & Schimp. -- accepted
  Orthotrichum alpestre var. majus Lesq. & James -- not accepted
  Orthotrichum alpestre var. watsonii (James) Grout -- not accepted
  Orthotrichum americanum P. Beauv. -- not accepted
  Orthotrichum anodon F. Lara, Garilleti & Mazimpaka -- accepted
  Orthotrichum anomalum Hedw. -- accepted
  Orthotrichum anomalum var. americanum (P. Beauv.) Brid. -- not accepted
  Orthotrichum arcticum Schimp. -- not accepted
  Orthotrichum arcticum var. groenlandicum (Berggr.) Mönk. -- not accepted
  Orthotrichum arcticum var. praemorsum (Venturi) Wijk & Margad. -- not accepted
  Orthotrichum bartramii R.S. Williams -- accepted -- Bartram's orthotrichum moss
  Orthotrichum blyttii Schimp. -- not accepted
  Orthotrichum blyttii ssp. arcticum (Schimp.) Macoun -- not accepted
  Orthotrichum blyttii ssp. microblephare (Schimp.) Macoun -- not accepted
  Orthotrichum blyttii var. arcticum (Schimp.) I. Hagen -- not accepted
  Orthotrichum blyttii var. groenlandicum (Berggr.) C.E.O. Jensen -- not accepted
  Orthotrichum blyttii var. microblephare (Schimp.) C.E.O. Jensen -- not accepted
  Orthotrichum bolanderi Sull. -- not accepted -- Bolander's orthotrichum moss
  Orthotrichum brachytrichum Schimp. ex Lesq. & James -- not accepted
  Orthotrichum braunii Bruch & Schimp. -- not accepted
  Orthotrichum bullatum Müll. Hal. -- not accepted
  Orthotrichum calcareum Austin -- not accepted
  Orthotrichum californicum Venturi -- not accepted
  Orthotrichum canadense Bruch & Schimp. -- not accepted
  Orthotrichum citrinum Austin -- not accepted
  Orthotrichum coarctatum P. Beauv. -- not accepted
  Orthotrichum columbicum Mitt. -- accepted
  Orthotrichum concavifolium Griff. -- not accepted
  Orthotrichum connectens Kindb. -- not accepted
  Orthotrichum consimile Mitt. -- accepted
  Orthotrichum consimile ssp. anomaloides Kindb. -- not accepted
  Orthotrichum coulteri Mitt. -- accepted
  Orthotrichum crispum Hedw. -- not accepted
  Orthotrichum crispum var. curvifolium (Wahlenb.) Wahlenb. -- not accepted
  Orthotrichum cupulatum Brid. -- accepted
  Orthotrichum cupulatum var. jamesianum (Sull.) E. Lawton -- not accepted
  Orthotrichum curvifolium Wahlenb. -- not accepted
  Orthotrichum cylindrocarpum Lesq. -- not accepted
  Orthotrichum diaphanum Brid. -- accepted
  Orthotrichum douglasii Duby -- not accepted
  Orthotrichum drummondii Hook. & Grev. -- not accepted
  Orthotrichum elegans Schwägr. ex Hook. & Grev. -- not accepted
  Orthotrichum epapillosum E. Lawton & F.J. Herm. -- not accepted
  Orthotrichum euryphyllum Venturi -- accepted
  Orthotrichum exiguum Sull. -- accepted
  Orthotrichum fallax Bruch ex Brid. -- not accepted
  Orthotrichum fallax var. truncatulum Austin -- not accepted
  Orthotrichum fasciculare Brid. -- not accepted
  Orthotrichum fenestratum Cardot & Thér. -- not accepted
  Orthotrichum flowersii Vitt -- accepted -- Flower's orthotrichum moss
  Orthotrichum garretti Grout & Flowers -- not accepted
  Orthotrichum groenlandicum Berggr. -- not accepted
  Orthotrichum gymnostomum Bruch ex Brid. -- accepted
  Orthotrichum hainesiae Austin -- not accepted
  Orthotrichum hallii Sull. & Lesq. -- accepted -- Hall's orthotrichum moss
  Orthotrichum hendersonii Renauld & Cardot -- not accepted
  Orthotrichum holzingeri Renauld & Cardot -- not accepted -- Holzinger's orthotrichum moss
  Orthotrichum hutchinsiae Sm. -- not accepted
  Orthotrichum idahense Cardot & Thér. -- not accepted
  Orthotrichum immersum Brid. -- not accepted
  Orthotrichum inflexum Müll. Hal. -- not accepted
  Orthotrichum jamesianum Sull. -- not accepted
  Orthotrichum keeverae H.A. Crum & L.E. Anderson -- not accepted -- Keever's orthotrichum moss
  Orthotrichum kellmanii D.H. Norris, Shevock & Goffinet -- accepted
  Orthotrichum killiasii Müll. Hal. -- not accepted
  Orthotrichum kingianum Lesq. -- not accepted
  Orthotrichum laevigatum J.E. Zetterst. -- not accepted
  Orthotrichum laevigatum var. kingianum (Lesq.) Grout -- not accepted
  Orthotrichum leiodon Kindb. -- not accepted
  Orthotrichum lescurii Austin -- accepted
  Orthotrichum lescurii ssp. porteri (Sull. & Lesq.) Kindb. -- not accepted
  Orthotrichum lonchothecium Müll. Hal. & Kindb. -- not accepted
  Orthotrichum lozanoi Cardot -- not accepted
  Orthotrichum lozanoi var. lutescens Cardot -- not accepted
  Orthotrichum ludwigii Brid. -- not accepted
  Orthotrichum lyellii Hook. & Taylor -- not accepted -- Lyell's orthotrichum moss
  Orthotrichum lyellii ssp. strictum Venturi -- not accepted
  Orthotrichum lyellii var. howei Renauld & Cardot -- not accepted
  Orthotrichum lyellii var. papillosum (Hampe) Sull. & Lesq. -- not accepted
  Orthotrichum lyellii var. pringlei (Müll. Hal.) Macoun & Kindb. -- not accepted
  Orthotrichum lyellioides Kindb. -- not accepted
  Orthotrichum macfaddeniae R.S. Williams -- not accepted
  Orthotrichum macounii Austin -- not accepted
  Orthotrichum macounii var. lonchothecium (Müll. Hal. & Kindb.) Grout -- not accepted
  Orthotrichum microblephare var. praemorsum (Venturi) Grout -- not accepted
  Orthotrichum norrisii F. Lara, R. Medina & Garilleti -- accepted
  Orthotrichum nudum var. strangulatum (P. Beauv.) Baehni -- not accepted
  Orthotrichum obtusifolium Schrad. ex Brid. -- not accepted -- obtuseleaf aspen moss
  Orthotrichum obtusiusculum (Müll. Hal. & Kindb.) Kindb. -- not accepted
  Orthotrichum occidentale James -- not accepted
  Orthotrichum ohioense Sull. & Lesq. -- accepted -- Ohio orthotrichum moss
  Orthotrichum ohioense var. citrinum (Austin) Lesq. & James -- not accepted
  Orthotrichum pallens Bruch ex Brid. -- accepted
  Orthotrichum pallens var. crenulatum Vitt -- accepted -- crenulate orthotrichum moss
  Orthotrichum pallens var. immersum (Brid.) Müll. Hal. -- not accepted
  Orthotrichum pallens var. johnseniae Vitt -- accepted -- Johnsen's orthotrichum moss
  Orthotrichum pallens var. pallens Bruch ex Brid. -- accepted
  Orthotrichum papillosum Hampe -- not accepted
  Orthotrichum papillosum ssp. strictum (Venturi) Kindb. -- not accepted
  Orthotrichum parvulum Mitt. -- accepted
  Orthotrichum peckei Sull. & Lesq. -- not accepted
  Orthotrichum pellucidum Lindb. -- accepted -- xerophytic limestone moss
  Orthotrichum porteri Sull. & Lesq. -- not accepted
  Orthotrichum praemorsum Venturi -- not accepted
  Orthotrichum pringlei Müll. Hal. -- not accepted
  Orthotrichum psilocarpum James -- not accepted
  Orthotrichum psilothecium Müll. Hal. & Kindb. -- not accepted
  Orthotrichum pulchellum Brunt. -- accepted
  Orthotrichum pulchellum ssp. ulotaeforme (Renauld & Cardot) Kindb. -- not accepted
  Orthotrichum pulchellum var. columbicum (Mitt.) Grout -- not accepted
  Orthotrichum pulchellum var. groutii E. Lawton -- not accepted
  Orthotrichum pulchellum var. longipes Sull. -- not accepted
  Orthotrichum pulchellum var. productipes Renauld & Cardot -- not accepted
  Orthotrichum pumilum Sw. -- accepted
  Orthotrichum pumilum ssp. fallax (Bruch ex Brid.) Bertsch -- not accepted
  Orthotrichum pumilum var. americanum Venturi -- not accepted
  Orthotrichum pusillum Mitt. -- accepted
  Orthotrichum pycnophyllum Schimp. -- not accepted
  Orthotrichum pycnophyllum var. lutescens (Cardot) Grout -- not accepted
  Orthotrichum pylaisii Brid. -- not accepted -- Pylais' orthotrichum moss
  Orthotrichum pylaisii ssp. arcticum (Schimp.) Kindb. -- not accepted
  Orthotrichum raui Austin -- not accepted
  Orthotrichum recurvans Schimp. -- not accepted
  Orthotrichum rhabdophorum Venturi -- not accepted
  Orthotrichum rivulare Turner -- accepted -- streamside orthotrichum moss
  Orthotrichum roellii Venturi -- not accepted
  Orthotrichum roellii ssp. schlotthaueri (Venturi) Kindb. -- not accepted
  Orthotrichum roellii ssp. stenocarpum Kindb. -- not accepted
  Orthotrichum rugifolium Hook. -- not accepted
  Orthotrichum rupestre Schleich. ex Schwägr. -- not accepted
  Orthotrichum rupestre var. globosum (Lesq.) Grout -- not accepted
  Orthotrichum rupestre var. macfaddenae (R.S. Williams) Grout -- not accepted
  Orthotrichum schimperi Hammar -- accepted
  Orthotrichum schimperi var. truncatulum (Austin) Paris -- not accepted
  Orthotrichum schlotthaueri Venturi -- not accepted
  Orthotrichum shawii Wilson -- not accepted
  Orthotrichum shevockii Lewinsky-Haapasaari & D.H. Norris -- accepted
  Orthotrichum sordidum Sull. & Lesq. -- not accepted
  Orthotrichum speciosum Nees -- not accepted -- lanceolateleaf rock moss
  Orthotrichum speciosum ssp. elegans (Schwägr. ex Hook. & Grev.) Lindb. -- not accepted
  Orthotrichum speciosum ssp. laevigatum (J.E. Zetterst.) J.J. Amann -- not accepted
  Orthotrichum speciosum var. brevicaule Lesq. -- not accepted
  Orthotrichum speciosum var. elegans (Schwägr. ex Hook. & Grev.) Warnst. -- not accepted -- elegant lanceolateleaf rock moss
  Orthotrichum speciosum var. hainesiae (Austin) Paris -- not accepted
  Orthotrichum speciosum var. killiasii (Müll. Hal.) Venturi -- not accepted
  Orthotrichum speciosum var. polyanthum Lesq. -- not accepted
  Orthotrichum speciosum var. polycarpum Lesq. & James -- not accepted
  Orthotrichum speciosum var. raui Lesq. & James -- not accepted
  Orthotrichum speciosum var. roellii Venturi -- not accepted
  Orthotrichum spjutii D.H. Norris & Vitt -- not accepted
  Orthotrichum splachnoides Froel. ex Brid. -- not accepted
  Orthotrichum stellatum Brid. -- accepted -- stellate orthotrichum moss
  Orthotrichum stramineum Hornsch. -- accepted
  Orthotrichum strangulatum P. Beauv. -- accepted -- strangulate orthotrichum moss
  Orthotrichum strangulatum var. missouricum Holz. ex Grout -- not accepted
  Orthotrichum strangulatum var. stellatum (Brid.) A. Jaeger -- not accepted
  Orthotrichum striatum Hedw. -- not accepted
  Orthotrichum tenellum Bruch ex Brid. -- accepted
  Orthotrichum tenellum var. coulteri (Mitt.) Grout -- not accepted
  Orthotrichum tenellum var. cylindrocarpum (Lesq.) L.F. Koch -- not accepted
  Orthotrichum tenellum var. pumilum (Sw.) Boulay -- not accepted
  Orthotrichum tenue Hook. & Grev. -- not accepted
  Orthotrichum texanum Sull. & Lesq. -- not accepted
  Orthotrichum texanum var. globosum Lesq. -- not accepted
  Orthotrichum ulotaeforme Renauld & Cardot -- not accepted
  Orthotrichum underwoodii F. Lara, Garilleti & Mazimpaka -- accepted
  Orthotrichum utahense Sull. ex Lesq. -- not accepted
  Orthotrichum watsonii James -- not accepted
  Oxyrrhynchium (Schimp.) Warnst. -- accepted
  Oxyrrhynchium hians (Hedw.) Loeske -- accepted
  Oxyrrhynchium hians ssp. rappii (R.S. Williams) Wijk & Margad. -- not accepted
  Oxyrrhynchium macroneuron (Grout) Wynns -- not accepted
  Oxyrrhynchium pringlei (Cardot) Wynns -- not accepted
  Oxyrrhynchium rappii R.S. Williams -- not accepted
  Palamocladium Müll. Hal. -- accepted
  Palamocladium leskeoides (Hook.) E. Britton -- accepted
  Paludella Ehrh. ex Brid. -- accepted
  Paludella squarrosa (Hedw.) Brid. -- accepted -- angled paludella moss
  Palustriella Ochyra -- accepted
  Palustriella falcata (Brid.) Hedenäs -- accepted
  Papillaria (Müll. Hal.) Lorentz -- accepted
  Papillaria nigrescens (Sw. ex Hedw.) A. Jaeger -- not accepted -- black papillaria moss
  Papillaria nigrescens ssp. donnellii (Austin) Kindb. -- not accepted
  Papillaria nigrescens var. donnellii Austin -- not accepted
  Philonotis Brid. -- accepted
  Philonotis americana Dism. -- not accepted
  Philonotis calcarea (Bruch & Schimp.) Schimp. -- accepted
  Philonotis capillaris Lindb. -- accepted
  Philonotis cernua (Wilson) D.G. Griffin & W.R. Buck -- accepted
  Philonotis fontana (Hedw.) Brid. -- accepted
  Philonotis fontana var. americana (Dism.) Flowers ex H.A. Crum -- accepted -- American philonotis moss
  Philonotis fontana var. caespitosa (Jur.) Limpr. -- not accepted -- low philonotis moss
  Philonotis fontana var. falcata (Hook.) Brid. -- not accepted
  Philonotis fontana var. fontana (Hedw.) Brid. -- accepted
  Philonotis fontana var. pumila (Turner) Brid. -- accepted
  Philonotis fontana var. seriata (Mitt.) Kindb. -- not accepted
  Philonotis glaucescens (Hornsch.) Broth. -- not accepted
  Philonotis gracillima Ångstr. -- accepted
  Philonotis longiseta (Michx.) E. Britton -- accepted
  Philonotis marchica (Hedw.) Brid. -- accepted
  Philonotis muhlenbergii (Schwägr.) Brid. -- not accepted
  Philonotis seriata Mitt. -- accepted
  Philonotis sphaericarpa (Hedw.) Brid. -- not accepted
  Philonotis uncinata (Schwägr.) Brid. -- accepted
  Philonotis yezoana Besch. & Cardot -- accepted
  Pilosium (Broth.) M. Fleisch. -- accepted
  Pilosium chlorophyllum (Hornsch.) Müll. Hal. ex Broth. -- accepted
  Pilotrichaceae -- accepted
  Pilotrichum antipyreticum (Hedw.) Müll. Hal. -- not accepted
  Pilotrichum cymbifolium Sull. -- not accepted
  Pilotrichum sphagnifolium Müll. Hal. -- not accepted
  Pirea Cardot -- not accepted
  Pireella Cardot -- accepted
  Pireella cymbifolia (Sull.) Cardot -- accepted
  Pireella ludoviciae Grout -- not accepted
  Pireella pohlii (Schwägr.) Cardot -- accepted -- Pohl's pireella moss
  Plagiobryoides J.R. Spence -- accepted
  Plagiobryoides brachyneura (Kindb.) J.R. Spence -- accepted
  Plagiobryoides cellularis (Hook.) J.R. Spence -- accepted
  Plagiobryoides incrassatolimbata (Cardot) J.R. Spence -- accepted
  Plagiobryoides renauldii (Röll ex Renauld & Cardot) J.R. Spence -- accepted
  Plagiobryoides vinosula (Cardot) J.R. Spence -- accepted
  Plagiobryum Lindb. -- accepted
  Plagiobryum demissum (Hook.) Lindb. -- accepted
  Plagiobryum zieri (Hedw.) Lindb. -- accepted
  Plagiomnium T.J. Kop. -- accepted
  Plagiomnium carolinianum (L.E. Anderson) T.J. Kop. -- accepted -- Carolina plagiomnium moss
  Plagiomnium ciliare (Müll. Hal.) T.J. Kop. -- accepted
  Plagiomnium cinclidioides (Huebener) M.C. Bowers -- not accepted
  Plagiomnium cuspidatum (Hedw.) T.J. Kop. -- accepted -- toothed plagiomnium moss
  Plagiomnium drummondii (Bruch & Schimp.) T.J. Kop. -- accepted -- Drummond's plagiomnium moss
  Plagiomnium ellipticum (Brid.) T.J. Kop. -- accepted -- elliptic plagiomnium moss
  Plagiomnium floridanum R.E. Wyatt & Odrzykoski -- accepted
  Plagiomnium insigne (Mitt.) T.J. Kop. -- accepted
  Plagiomnium medium (Bruch & Schimp.) T.J. Kop. -- accepted -- medium plagiomnium moss
  Plagiomnium medium ssp. curvatulum (Lindb.) T.J. Kop. -- not accepted
  Plagiomnium medium var. curvatulum (Lindb.) H.A. Crum & L.E. Anderson -- not accepted -- medium plagiomnium moss
  Plagiomnium rostratum (Schrad.) T.J. Kop. -- accepted
  Plagiomnium rugicum (Laurer) T.J. Kop. -- not accepted
  Plagiomnium undulatum (Hedw.) T.J. Kop. -- accepted
  Plagiomnium venustum (Mitt.) T.J. Kop. -- accepted
  Plagiopus Brid. -- accepted
  Plagiopus oederianus (Sw.) H.A. Crum & L.E. Anderson -- accepted
  Plagiotheciaceae -- accepted
  Plagiotheciella latebricola (Schimp.) M. Fleisch. -- not accepted
  Plagiotheciella pilifera (Sw.) M. Fleisch. -- not accepted
  Plagiothecium Bruch & Schimp. -- accepted
  Plagiothecium acicularipungens Müll. Hal. & Kindb. -- not accepted
  Plagiothecium attenuatirameum Kindb. -- not accepted
  Plagiothecium berggrenianum Frisvoll -- accepted -- Berggren's plagiothecium moss
  Plagiothecium cavifolium (Brid.) Z. Iwats. -- accepted
  Plagiothecium curvifolium Schlieph. ex Limpr. -- not accepted
  Plagiothecium decursivifolium Kindb. -- not accepted
  Plagiothecium denticulatum (Hedw.) Schimp. -- accepted -- toothed plagiothecium moss
  Plagiothecium denticulatum var. bullulae Grout -- not accepted
  Plagiothecium denticulatum var. laetum (Schimp.) Lindb. -- not accepted
  Plagiothecium denticulatum var. microcarpum Renauld & Cardot -- not accepted
  Plagiothecium denticulatum var. tenellum Schimp. -- not accepted
  Plagiothecium deplanatum (Bruch & Schimp. ex Sull.) Spruce -- not accepted
  Plagiothecium elegans (Brid.) Schimp. -- not accepted
  Plagiothecium elegans var. gracilens Austin ex Grout -- not accepted
  Plagiothecium elegans var. schimperi (Jur. & Milde) Limpr. -- not accepted
  Plagiothecium fallax Cardot & Thér. -- not accepted
  Plagiothecium fulvum A. Jaeger -- not accepted
  Plagiothecium geophilum (Austin) Grout -- not accepted
  Plagiothecium groutii Cardot & Thér. -- not accepted
  Plagiothecium laetum Schimp. -- accepted
  Plagiothecium laetum var. neomexicanum Cardot -- not accepted
  Plagiothecium latebricola Schimp. -- accepted
  Plagiothecium mariannae Grout -- not accepted
  Plagiothecium micans (Sw.) Paris -- not accepted
  Plagiothecium micans var. fulvum (A. Jaeger) Paris -- not accepted
  Plagiothecium muehlenbeckii Schimp. -- not accepted
  Plagiothecium muellerianum Schimp. -- not accepted
  Plagiothecium passaicense Austin -- not accepted
  Plagiothecium piliferum (Sw.) Schimp. -- accepted
  Plagiothecium pseudolatebricola Kindb. -- not accepted
  Plagiothecium pulchellum (Hedw.) Schimp. -- not accepted
  Plagiothecium roeseanum Schimp. -- not accepted
  Plagiothecium ruthei Limpr. -- not accepted
  Plagiothecium sandbergii Renauld & Cardot -- not accepted
  Plagiothecium seligeri (Brid.) Lindb. -- not accepted
  Plagiothecium silesiacum (F. Weber & D. Mohr) Schimp. -- not accepted
  Plagiothecium striatellum (Brid.) Lindb. -- not accepted
  Plagiothecium subfalcatum Austin -- not accepted
  Plagiothecium sulcatum Cardot & Thér. -- not accepted
  Plagiothecium sullivantiae (Schimp. ex Sull.) Bruch & Schimp. ex A. Jaeger -- not accepted
  Plagiothecium sylvaticum var. squarrosum Kindb. -- not accepted
  Plagiothecium turfaceum (Lindb.) Lindb. -- not accepted
  Plagiothecium undulatum (Hedw.) Schimp. -- not accepted -- undulate plagiothecium moss
  Plagiothecium undulatum ssp. subneckeroideum Kindb. -- not accepted
  Plagiothecium undulatum var. myurum Cardot & Thér. -- not accepted
  Platydictya Berk. -- accepted
  Platydictya confervoides (Brid.) H.A. Crum -- accepted
  Platydictya jungermannioides (Brid.) H.A. Crum -- accepted -- Jungermann's platydictya moss
  Platydictya jungermannioides var. minutissima (Sull. & Lesq.) H.A. Crum -- not accepted
  Platydictya minutissima (Sull. & Lesq.) H.A. Crum -- accepted -- minute platydictya moss
  Platydictya subtilis (Hedw.) H.A. Crum -- accepted
  Platygyrium Schimp. -- accepted
  Platygyrium fuscoluteum Cardot -- accepted
  Platygyrium repens (Brid.) Schimp. -- accepted
  Platygyrium repens var. ascendens (Schwägr.) Grout -- not accepted
  Platygyrium repens var. orthoclados Kindb. -- not accepted
  Platyhypnidium M. Fleisch. -- not accepted
  Platyhypnidium aquaticum (A. Jaeger) M. Fleisch. -- not accepted
  Platyloma Kindb. -- not accepted
  Platylomella A.L. Andrews -- accepted
  Platylomella lescurii (Sull.) A.L. Andrews -- accepted -- Lescur's platylomella moss
  Pleuroziopsaceae -- accepted
  Pleuroziopsis Kindb. ex E. Britton -- accepted
  Pleuroziopsis ruthenica (Weinm.) Kindb. ex E. Britton -- accepted
  Pleurozium (Sull.) Mitt. -- accepted -- big red stem moss
  Pleurozium schreberi (Willd. ex Brid.) Mitt. -- accepted -- Schreber's big red stem moss
  Pleurozium schreberi var. tananae (Grout) Wijk & Margad. -- not accepted
  Pohlia Hedw. -- accepted
  Pohlia acuminata Hoppe & Hornsch. -- not accepted
  Pohlia andalusica (Höhn.) Broth. -- accepted -- Andalusian pohlia moss
  Pohlia andrewsii A.J. Shaw -- accepted -- Andrews' pohlia moss
  Pohlia annotina (Hedw.) Lindb. -- accepted
  Pohlia arctica R. Br. -- not accepted
  Pohlia atropurpurea (Wahlenb.) H. Lindb. -- accepted
  Pohlia beringiensis A.J. Shaw -- accepted -- Bering's pohlia moss
  Pohlia bolanderi (Lesq.) Broth. -- accepted -- Bolander's pohlia moss
  Pohlia bolanderi var. seriata A.J. Shaw -- not accepted -- Bolander's pohlia moss
  Pohlia brevinervis Lindb. & Arnell -- accepted
  Pohlia bulbifera (Warnst.) Warnst. -- accepted
  Pohlia camptotrachela (Renauld & Cardot) Broth. -- accepted
  Pohlia cardotii (Renauld) Broth. -- accepted -- Cardot's pohlia moss
  Pohlia columbica (Kindb.) A.L. Andrews -- accepted
  Pohlia commutata (Schimp.) Lindb. -- not accepted
  Pohlia cruda (Hedw.) Lindb. -- accepted
  Pohlia crudoides (Sull. & Lesq.) Broth. -- accepted
  Pohlia defecta (Sanio) A.L. Andrews -- not accepted
  Pohlia drummondii (Müll. Hal.) A.L. Andrews -- accepted -- Drummond's pohlia moss
  Pohlia elongata Hedw. -- accepted -- elongate pohlia moss
  Pohlia elongata var. greenii (Brid.) A.J. Shaw -- not accepted -- Green's pohlia moss
  Pohlia erecta Lindb. -- accepted -- erect pohlia moss
  Pohlia filiformis (Dicks.) A.L. Andrews -- not accepted
  Pohlia filum (Schimp.) Mårtensson -- accepted
  Pohlia flexuosa Hook. -- accepted
  Pohlia inclinata Sw. ex Brid. -- not accepted
  Pohlia intermedia Brid. -- not accepted
  Pohlia lescuriana (Sull.) Ochi -- accepted -- Lescur's pohlia moss
  Pohlia longibracteata Broth. -- accepted -- longbract pohlia moss
  Pohlia longicolla (Hedw.) Lindb. -- accepted
  Pohlia ludwigii (Spreng. ex Schwägr.) Broth. -- accepted -- Ludwig's pohlia moss
  Pohlia melanodon (Brid.) A.J. Shaw -- accepted
  Pohlia nutans (Hedw.) Lindb. -- accepted
  Pohlia obtusifolia (Vill. ex Brid.) L.F. Koch -- accepted -- obtuseleaf pohlia moss
  Pohlia pacifica A.J. Shaw -- accepted -- Pacific pohlia moss
  Pohlia polymorpha Hoppe & Hornsch. -- not accepted
  Pohlia proligera (Kindb.) Lindb. ex Arnell -- accepted
  Pohlia pulchella (Hedw.) Lindb. -- not accepted
  Pohlia rabunbaldensis A.J. Shaw -- accepted
  Pohlia robertsonii Shevock & A.J. Shaw -- accepted
  Pohlia sphagnicola (Bruch & Schimp.) Lindb. & Arnell -- not accepted
  Pohlia tundrae A.J. Shaw -- accepted -- tundra pohlia moss
  Pohlia vexans (Limpr.) H. Lindb. -- accepted
  Pohlia wahlenbergii (F. Weber & D. Mohr) A.L. Andrews -- accepted -- Wahlenberg's pohlia moss
  Pohlia zierii (Hedw.) Schwägr. -- not accepted
  Porotrichum (Brid.) Hampe -- accepted
  Porotrichum bigelovii (Sull.) Kindb. -- accepted -- Bigelow's porotrichum moss
  Porotrichum vancouveriense (Kindb.) H.A. Crum -- not accepted -- Vancouver porotrichum moss
  Pseudisothecium myosuroides (Brid.) Grout -- not accepted
  Pseudobraunia (Lesq. & James) Broth. -- accepted
  Pseudobraunia californica (Lesq.) Broth. -- accepted -- California pseudobraunia moss
  Pseudobraunia californica var. pilifera (Mitt.) Broth. -- not accepted
  Pseudobryum (Kindb.) T.J. Kop. -- accepted
  Pseudobryum cinclidioides (Huebener) T.J. Kop. -- accepted
  Pseudocalliergon (Limpr.) Loeske -- accepted
  Pseudocalliergon angustifolium Hedenäs -- accepted
  Pseudocalliergon brevifolium (Lindb.) Hedenäs -- accepted
  Pseudocalliergon trifarium (F. Weber & D. Mohr) Loeske -- accepted
  Pseudocalliergon turgescens (T. Jensen) Loeske -- accepted
  Pseudocampylium Vanderp. & Hedenäs -- accepted
  Pseudocampylium radicale (P. Beauv.) Vanderp. & Hedenäs -- accepted
  Pseudocryphaea E. Britton ex Broth. -- accepted
  Pseudocryphaea domingensis (Spreng.) W.R. Buck -- accepted -- Domingan pseudocryphaea moss
  Pseudocryphaea flagellifera (Brid.) E. Britton -- not accepted
  Pseudoditrichaceae -- accepted
  Pseudoditrichum Steere & Z. Iwats. -- accepted
  Pseudoditrichum mirabile Steere & Z. Iwats. -- accepted
  Pseudohygrohypnum Kanda -- accepted
  Pseudohygrohypnum eugyrium (Schimp.) Kanda -- accepted
  Pseudohygrohypnum subeugyrium (Renauld & Cardot) Ignatov & Ignatova -- accepted
  Pseudoleskea Bruch & Schimp. -- accepted
  Pseudoleskea arizonae R.S. Williams -- not accepted
  Pseudoleskea atricha (Kindb.) Kindb. -- accepted
  Pseudoleskea atrovirens var. atricha Kindb. -- not accepted
  Pseudoleskea baileyi Best & Grout -- accepted -- Bailey's pseudoleskea moss
  Pseudoleskea filamentosa var. tenuiretis Culm. -- not accepted
  Pseudoleskea incurvata (Hedw.) Loeske -- accepted
  Pseudoleskea incurvata var. gigantea (E. Lawton) H.A. Crum, Steere & L.E. Anderson -- accepted -- giant pseudoleskea moss
  Pseudoleskea incurvata var. incurvata (Hedw.) Loeske -- accepted
  Pseudoleskea incurvata var. tenuiretis (Culm.) Podp. -- accepted
  Pseudoleskea occidentalis Kindb. -- not accepted
  Pseudoleskea pallida Best -- not accepted
  Pseudoleskea patens (Lindb.) Kindb. -- accepted
  Pseudoleskea praelonga Schimp. ex Besch. -- not accepted
  Pseudoleskea radicosa (Mitt.) Macoun & Kindb. -- accepted
  Pseudoleskea radicosa var. compacta Best -- accepted -- compact pseudoleskea moss
  Pseudoleskea radicosa var. denudata (Kindb.) Wijk & Margad. -- accepted -- denuded pseudoleskea moss
  Pseudoleskea radicosa var. radicosa (Mitt.) Macoun & Kindb. -- accepted
  Pseudoleskea saviana (De Not.) Latzel -- accepted
  Pseudoleskea sciuroides var. denudata Kindb. -- not accepted
  Pseudoleskea stenophylla Renauld & Cardot -- accepted
  Pseudoleskea tectorum (A. Braun ex Brid.) Schimp. -- not accepted
  Pseudoleskea tribulosa Shevock & W.R. Buck -- accepted
  Pseudoleskeella Kindb. -- accepted
  Pseudoleskeella arizonae (R.S. Williams) E. Lawton -- accepted
  Pseudoleskeella nervosa (Brid.) Nyholm -- not accepted
  Pseudoleskeella rupestris (Berggr.) Hedenäs & L. Söderstr. -- accepted
  Pseudoleskeella serpentinensis P.S. Wilson & D.H. Norris -- accepted -- serpentine pseudoleskeella moss
  Pseudoleskeella sibirica (Arnell) P.S. Wilson & D.H. Norris -- not accepted -- Siberian pseudoleskeella moss
  Pseudoleskeella tectorum (A. Braun ex Brid.) Broth. -- accepted
  Pseudoleskeella vancouveriensis (Kindb.) Kindb. -- not accepted
  Pseudoscleropodium (Limpr.) M. Fleisch. -- accepted
  Pseudoscleropodium purum (Hedw.) M. Fleisch. -- accepted
  Pseudostereodon (Broth.) M. Fleisch. -- accepted
  Pseudostereodon procerrimus (Molendo) M. Fleisch. -- accepted
  Pseudotaxiphyllum Z. Iwats. -- accepted
  Pseudotaxiphyllum distichaceum (Mitt.) Z. Iwats. -- accepted
  Pseudotaxiphyllum elegans (Brid.) Z. Iwats. -- accepted -- elegant pseudotaxiphyllum moss
  Pseudotaxiphyllum homomallifolium (Redf.) Ireland -- accepted
  Pterigynandraceae -- accepted
  Pterigynandrum Hedw. -- accepted
  Pterigynandrum brachycladon Brid. -- not accepted
  Pterigynandrum domingense (Spreng.) Hampe -- not accepted
  Pterigynandrum filiforme Hedw. -- accepted
  Pterigynandrum gracile Hedw. -- not accepted
  Pterigynandrum hirtellum Hedw. -- not accepted
  Pterigynandrum intricatum Hedw. -- not accepted
  Pterigynandrum julaceum Hedw. -- not accepted
  Pterigynandrum longifolium Schleich. ex Brid. -- not accepted
  Pterigynandrum nervosum Brid. -- not accepted
  Pterigynandrum repens Brid. -- not accepted
  Pterigynandrum sharpii H.A. Crum & L.E. Anderson -- not accepted
  Pterigynandrum subcapillatum Hedw. -- not accepted
  Pterigynandrum tenerrimum Brid. -- not accepted
  Pterigynandrum trichomitrion Hedw. -- not accepted
  Pterobryaceae -- accepted
  Pterogonium Sw. -- not accepted
  Pterogonium brachypterum Mitt. -- not accepted
  Pterogonium decumbens Schwägr. -- not accepted
  Pterogonium gracile (Hedw.) Sm. -- not accepted
  Pterogonium intricatum (Hedw.) Schwägr. -- not accepted
  Pterogonium polyanthos (Hedw.) Muhl. -- not accepted
  Pterogonium procurrens Mitt. -- not accepted
  Pterogonium productum Hornsch. -- not accepted
  Pterygophyllum acutifolium (Hook. & Grev.) Müll. Hal. -- not accepted
  Pterygophyllum indicum Bél. -- not accepted
  Ptilium De Not. -- accepted
  Ptilium crista-castrensis (Hedw.) De Not. -- accepted -- knights plume moss
  Ptychostomum Hornsch. -- accepted
  Ptychostomum acutiforme (Limpr.) J.R. Spence -- accepted
  Ptychostomum archangelicum (Bruch & Schimp.) J.R. Spence -- accepted
  Ptychostomum arcticum (R. Br.) J.R. Spence -- accepted
  Ptychostomum badium (Bruch ex Brid.) J.R. Spence -- not accepted
  Ptychostomum bimum (Schreb.) J.R. Spence -- accepted
  Ptychostomum bryoides (R. Br.) J.R. Spence -- not accepted
  Ptychostomum calophyllum (R. Br.) J.R. Spence -- accepted
  Ptychostomum cernuum (Hedw.) Hornsch. -- accepted
  Ptychostomum creberrimum (Taylor) J.R. Spence & H.P. Ramsay -- accepted
  Ptychostomum cryophilum (Mårtensson) J.R. Spence -- accepted
  Ptychostomum curvatum (Kaurin & Arnell) J.R. Spence -- not accepted
  Ptychostomum cyclophyllum (Schwägr.) J.R. Spence -- accepted
  Ptychostomum imbricatulum (Müll. Hal.) Holyoak & N. Pedersen -- not accepted
  Ptychostomum inclinatum (Sw. ex Brid.) J.R. Spence -- accepted
  Ptychostomum intermedium (Brid.) J.R. Spence -- accepted
  Ptychostomum knowltonii (Barnes) J.R. Spence -- accepted
  Ptychostomum lonchocaulon (Müll. Hal.) J.R. Spence -- accepted
  Ptychostomum longisetum (Blandow ex Schwägr.) J.R. Spence -- accepted
  Ptychostomum marratii (Hook. & Wilson) J. R. Spence -- accepted
  Ptychostomum meesioides (Kindb.) J.R. Spence -- accepted
  Ptychostomum neodamense (Itzigs.) J.R. Spence -- accepted
  Ptychostomum nitidulum (Lindb.) J.R. Spence -- accepted
  Ptychostomum pallens (Sw.) J.R. Spence -- accepted
  Ptychostomum pallescens (Schleich. ex Schwägr.) J.R. Spence -- accepted
  Ptychostomum pendulum Hornsch. -- accepted
  Ptychostomum pseudotriquetrum (Hedw.) J.R. Spence & H.P. Ramsay ex Holyoak & N. Pedersen -- accepted
  Ptychostomum purpurascens (R. Br.) J.R. Spence -- not accepted
  Ptychostomum reedii (H. Rob.) J.R. Spence -- accepted
  Ptychostomum rutilans (Brid.) J.R. Spence -- accepted
  Ptychostomum salinum (I. Hagen ex Limpr.) J.R. Spence -- accepted
  Ptychostomum schleicheri (Schwägr.) J.R. Spence -- accepted
  Ptychostomum subneodamense (Kindb.) J.R. Spence -- accepted
  Ptychostomum turbinatum (Hedw.) J.R. Spence -- accepted
  Ptychostomum warneum (Röhl.) J.R. Spence -- accepted
  Ptychostomum weigelii (Spreng.) J.R. Spence -- accepted
  Ptychostomum wrightii (Sull.) J.R. Spence -- accepted
  Pylaisia Schimp. -- accepted
  Pylaisia alpicola (Lindb.) Limpr. -- not accepted
  Pylaisia cyrtophylla Kindb. -- not accepted
  Pylaisia denticulata Schimp. ex Sull. -- not accepted
  Pylaisia filari-acuminata Müll. Hal. & Kindb. -- not accepted
  Pylaisia intricata (Hedw.) Schimp. -- accepted
  Pylaisia jamesii Sull. & Lesq. -- not accepted
  Pylaisia ontariensis Müll. Hal. & Kindb. -- not accepted
  Pylaisia polyantha (Hedw.) Schimp. -- accepted
  Pylaisia polyantha var. jamesii (Sull. & Lesq.) Rau & Herv. -- not accepted
  Pylaisia polyantha var. subdenticulata Rau & Herv. -- not accepted
  Pylaisia pseudoplatygyrium Kindb. -- not accepted
  Pylaisia schimperi Cardot -- not accepted
  Pylaisia selwynii Kindb. -- accepted
  Pylaisia steerei (Ando & Higuchi) Ignatov -- accepted
  Pylaisia subdenticulata Schimp. -- not accepted
  Pylaisia suttonii Jenn. -- not accepted
  Pylaisia velutina Schimp. -- not accepted
  Pylaisiadelpha Cardot -- accepted
  Pylaisiadelpha tenuirostris (Bruch & Schimp. ex Sull.) W.R. Buck -- accepted
  Pylaisiella Kindb. ex Grout -- not accepted
  Pylaisiella intricata (Hedw.) Grout -- not accepted -- intricate pylaisiella moss
  Pylaisiella polyantha (Hedw.) Grout -- not accepted
  Pylaisiella selwynii (Kindb.) H.A. Crum, Steere & L.E. Anderson -- not accepted -- Selwyn's pylaisiella moss
  Pylaisiella steerei Ando & Higuchi -- not accepted -- Steere's pylaisiella moss
  Pylaisiella subdenticulata (Schimp.) Grout -- not accepted
  Pylaisiella velutina (Schimp.) Grout -- not accepted
  Pyrrhobryum Mitt. -- accepted
  Pyrrhobryum spiniforme (Hedw.) Mitt. -- accepted
  Racopilaceae -- accepted
  Racopilum P. Beauv. -- accepted
  Racopilum tomentosum (Hedw.) Brid. -- accepted
  Rauia Austin -- not accepted
  Rauia praelonga (Schimp. ex Besch.) Broth. ex Paris -- not accepted
  Rauia scita (P. Beauv.) Austin -- not accepted
  Rauiella Reimers -- accepted
  Rauiella praelonga (Schimp. ex Besch.) Wijk & Margad. -- accepted
  Rauiella scita (P. Beauv.) Reimers -- accepted
  Rauiella scita var. aestivalis (Austin) Wijk & Margad. -- not accepted
  Regmatodon fuscoluteus Besch. -- not accepted
  Rhaphidostegium ludovicianum Renauld & Cardot -- not accepted
  Rhaphidostegium recurvans (Michx.) A. Jaeger -- not accepted
  Rhaphidostegium roellii Renauld & Cardot -- not accepted
  Rhizogoniaceae -- accepted
  Rhizogonium spiniforme (Hedw.) Bruch -- not accepted
  Rhizomnium (Mitt. ex Broth.) T.J. Kop. -- accepted
  Rhizomnium andrewsianum (Steere) T.J. Kop. -- accepted -- Andrews' rhizomnium moss
  Rhizomnium appalachianum T.J. Kop. -- accepted -- Appalachian rhizomnium moss
  Rhizomnium glabrescens (Kindb.) T.J. Kop. -- accepted
  Rhizomnium gracile T.J. Kop. -- accepted
  Rhizomnium magnifolium (Horik.) T.J. Kop. -- accepted -- grandleaf rhizomnium moss
  Rhizomnium nudum (R.S. Williams) T.J. Kop. -- accepted -- naked rhizomnium moss
  Rhizomnium perssonii T.J. Kop. -- not accepted
  Rhizomnium pseudopunctatum (Bruch & Schimp.) T.J. Kop. -- accepted
  Rhizomnium punctatum (Hedw.) T.J. Kop. -- accepted
  Rhizomnium punctatum ssp. chlorophyllosum (Kindb.) T.J. Kop. -- not accepted
  Rhodobryum (Schimp.) Limpr. -- accepted
  Rhodobryum ontariense (Kindb.) Paris in Kindb. -- accepted -- Ontario rhodobryum moss
  Rhodobryum roseum (Hedw.) Limpr. -- accepted -- rose rhodobryum moss
  Rhynchostegiella compacta (Hook.) Loeske -- not accepted
  Rhynchostegiella compacta ssp. americana (Grout) Wijk & Margad. -- not accepted
  Rhynchostegiella georgiana Dixon & Grout -- not accepted
  Rhynchostegium Schimp. -- accepted
  Rhynchostegium aquaticum A. Jaeger -- not accepted
  Rhynchostegium delicatulum James -- not accepted
  Rhynchostegium deplanatum (Bruch & Schimp. ex Sull.) Kindb. -- not accepted
  Rhynchostegium geophilum Austin -- not accepted
  Rhynchostegium micans (Sw.) Austin -- not accepted
  Rhynchostegium obtusifolium (Mitt.) A. Jaeger -- not accepted
  Rhynchostegium pringlei Cardot -- not accepted
  Rhynchostegium serrulatum (Hedw.) A. Jaeger -- accepted
  Rhynchostegium subrusciforme (Müll. Hal.) A. Jaeger -- not accepted
  Rhytidiaceae -- accepted
  Rhytidiadelphus (Limpr.) Warnst. -- accepted -- goose neck moss
  Rhytidiadelphus calvescens (Lindb.) Broth. -- not accepted
  Rhytidiadelphus japonicus (Reimers) T.J. Kop. -- accepted -- Japanese goose neck moss
  Rhytidiadelphus loreus (Hedw.) Warnst. -- accepted -- loreus goose neck moss
  Rhytidiadelphus squarrosus (Hedw.) Warnst. -- accepted -- square goose neck moss
  Rhytidiadelphus squarrosus ssp. japonicus Reimers -- not accepted
  Rhytidiadelphus squarrosus var. calvescens (Lindb.) Warnst. -- not accepted
  Rhytidiadelphus subpinnatus (Lindb.) T.J. Kop. -- accepted
  Rhytidiadelphus triquetrus (Hedw.) Warnst. -- accepted -- rough goose neck moss
  Rhytidiadelphus triquetrus var. beringianus (Cardot & Thér.) Grout -- not accepted
  Rhytidiopsis Broth. -- accepted
  Rhytidiopsis robusta (Hook.) Broth. -- accepted -- robust rhytidiopsis moss
  Rhytidium (Sull.) Kindb. -- accepted
  Rhytidium rugosum (Hedw.) Kindb. -- accepted
  Roellia Kindb. -- not accepted -- Roell's moss
  Roellia lucida Kindb. -- not accepted
  Roellia roellii (Broth.) A.L. Andrews ex H.A. Crum -- not accepted -- Roell's moss
  Roellia simplex Kindb. -- not accepted
  Roellobryaceae -- accepted
  Roellobryon Ochyra -- accepted
  Roellobryon roellii (Broth.) Ochyra -- accepted
  Rosulabryum J.R. Spence -- accepted
  Rosulabryum andersonii (H.A. Crum) J.R. Spence -- accepted
  Rosulabryum andicola (Hook.) Ochyra -- accepted
  Rosulabryum bornholmense (Wink. & R. Ruthe) J.R. Spence -- accepted
  Rosulabryum canariense (Brid.) Ochyra -- accepted
  Rosulabryum capillare (Hedw.) J.R. Spence -- accepted
  Rosulabryum elegans (Nees) Ochyra -- accepted
  Rosulabryum erythroloma (Kindb.) J.R. Spence -- accepted
  Rosulabryum flaccidum (Brid.) J.R. Spence -- accepted
  Rosulabryum gemmascens (Kindb.) J.R. Spence -- accepted
  Rosulabryum laevifilum (Syed) Ochyra -- accepted
  Rosulabryum pseudocapillare (Besch.) Ochyra -- accepted
  Rosulabryum rubens (Mitt.) J.R. Spence -- accepted
  Rosulabryum torquescens (Bruch & Schimp.) J.R. Spence -- accepted
  Rutenbergiaceae -- accepted
  Sanionia Loeske -- accepted
  Sanionia nivalis Hedenäs -- accepted
  Sanionia orthothecioides (Lindb.) Loeske -- accepted
  Sanionia symmetrica (Renauld & Cardot) Wheld. -- accepted
  Sanionia uncinata (Hedw.) Loeske -- accepted
  Sarmentypnum Tuom. & T.J. Kop. -- accepted
  Sarmentypnum exannulatum (Schimp.) Hedenäs -- accepted
  Sarmentypnum pseudosarmentosum (Cardot & Thér.) Hedenäs -- accepted
  Sarmentypnum sarmentosum (Wahlenb.) Tuom. & T.J. Kop. -- accepted
  Sarmentypnum trichophyllum (Warnst.) Hedenäs -- accepted
  Sarmentypnum tundrae (Arnell) Hedenäs -- accepted
  Schizomitrium pallidum (Hornsch.) H.A. Crum & L.E. Anderson -- not accepted
  Schizymenium shevockii A.J. Shaw -- not accepted
  Schlotheimia Brid. -- accepted
  Schlotheimia lancifolia E.B. Bartram -- accepted -- lanceleaf schlotheimia moss
  Schlotheimia rugifolia (Hook.) Schwägr. -- accepted -- ruggedleaf schlotheimia moss
  Schoenobryum Dozy & Molk. -- accepted
  Schoenobryum concavifolium (Griff.) Gangulee -- accepted
  Schofieldiella W.R. Buck -- not accepted
  Schofieldiella micans (Mitt.) W.R. Buck -- not accepted
  Schwetschkea denticulata (Sull.) Cardot -- not accepted
  Schwetschkeopsis Broth. -- accepted
  Schwetschkeopsis denticulata (Sull.) Broth. -- not accepted
  Schwetschkeopsis fabronia (Schwägr.) Broth. -- accepted
  Sciaromium fryei R.S. Williams -- not accepted
  Sciaromium lescurii (Sull.) Broth. -- not accepted
  Sciuro-hypnum Hampe -- accepted
  Sciuro-hypnum curtum (Lindb.) Ignatov -- accepted
  Sciuro-hypnum glaciale (Schimp.) Ignatov & Huttunen -- accepted
  Sciuro-hypnum hylotapetum (B.L. Higinb. & N.L. Higinb.) Ignatov & Huttunen -- accepted
  Sciuro-hypnum latifolium (Kindb.) Ignatov & Huttunen -- accepted
  Sciuro-hypnum nelsonii (Grout) Ochyra & Zarnowiec -- not accepted
  Sciuro-hypnum oedipodium (Mitt.) Ignatov & Huttunen -- accepted
  Sciuro-hypnum ornellanum (Molendo) Ignatov & Huttunen -- accepted
  Sciuro-hypnum plumosum (Hedw.) Ignatov & Huttunen -- accepted
  Sciuro-hypnum populeum (Hedw.) Ignatov & Huttunen -- accepted
  Sciuro-hypnum reflexum (Starke) Ignatov & Huttunen -- accepted
  Sciuro-hypnum starkei (Brid.) Ignatov & Huttunen -- accepted
  Sciuro-hypnum uncinifolium (Broth. & Paris) Ochyra & Zarnowiec -- accepted
  Scleropodium Bruch & Schimp. -- accepted
  Scleropodium aplocladum (Mitt.) Grout -- not accepted
  Scleropodium californicum (Lesq.) Kindb. -- accepted -- California scleropodium moss
  Scleropodium cespitans (Müll. Hal.) L.F. Koch -- accepted -- low scleropodium moss
  Scleropodium colpophyllum (Sull.) Grout -- not accepted
  Scleropodium julaceum E. Lawton -- accepted
  Scleropodium krausei Macoun & Kindb. -- not accepted
  Scleropodium obtusifolium (Mitt.) Kindb. -- accepted -- obtuseleaf scleropodium moss
  Scleropodium occidentale B.E. Carter -- accepted
  Scleropodium ornellanum (Molendo) Lorentz -- not accepted
  Scleropodium purum (Hedw.) Limpr. -- not accepted
  Scleropodium touretii (Brid.) L.F. Koch -- accepted -- Touret's scleropodium moss
  Scleropodium touretii var. colpophyllum (Sull.) E. Lawton ex H.A. Crum -- accepted -- Touret's scleropodium moss
  Scleropodium touretii var. touretii (Brid.) L.F. Koch -- accepted -- Touret's scleropodium moss
  Scorpidium (Schimp.) Limpr. -- accepted
  Scorpidium cossonii (Schimp.) Hedenäs -- accepted
  Scorpidium revolvens (Sw.) Rubers -- accepted
  Scorpidium scorpioides (Hedw.) Limpr. -- accepted
  Scorpidium trifarium (F. Weber & D. Mohr) H.K.G. Paul -- not accepted
  Scorpidium turgescens (T. Jensen) Loeske -- not accepted
  Sematophyllaceae -- accepted
  Sematophyllum Mitt. -- accepted
  Sematophyllum adnatum (Michx.) E. Britton -- accepted
  Sematophyllum caespitosum Mitt. -- not accepted
  Sematophyllum carolinianum (Müll. Hal.) E. Britton -- not accepted
  Sematophyllum demissum (Wilson) Mitt. -- accepted -- sematophyllum moss
  Sematophyllum marylandicum (Müll. Hal.) E. Britton -- accepted -- Maryland sematophyllum moss
  Sematophyllum smallii R.S. Williams -- not accepted
  Sematophyllum subpinnatum (Brid.) E. Britton -- accepted
  Serpoleskea (Limpr. ex Hampe) Loeske -- not accepted
  Serpoleskea confervoides (Brid.) Loeske -- not accepted
  Serpoleskea subtilis (Hedw.) Loeske -- not accepted
  Sharpiella Z. Iwats. -- not accepted
  Sharpiella seligeri (Brid.) Z. Iwats. -- not accepted
  Sharpiella striatella (Brid.) Z. Iwats. -- not accepted
  Sharpiella turfacea (Lindb.) Z. Iwats. -- not accepted
  Sphaerocephalus Neck. ex Lindb. -- not accepted
  Sphaerocephalus acuminatus Lindb. & Arnell -- not accepted
  Splachnaceae -- accepted
  Splachnum Hedw. -- accepted -- splachnum dung moss
  Splachnum ampullaceum Hedw. -- accepted -- small capsule dung moss
  Splachnum angustatum Hedw. -- not accepted
  Splachnum froelichianum Hedw. -- not accepted
  Splachnum lingulatum Dicks. -- not accepted
  Splachnum luteum Hedw. -- accepted -- yellow moosedung moss
  Splachnum mnioides Hedw. -- not accepted
  Splachnum ovatum Dicks. ex Hedw. -- not accepted
  Splachnum ovatum var. sphaericum (Hedw.) Dixon -- not accepted
  Splachnum paradoxum R. Br. -- not accepted
  Splachnum pensylvanicum (Brid.) Grout ex H.A. Crum -- accepted
  Splachnum rubrum Hedw. -- accepted -- brilliant red dung moss
  Splachnum serratum Hedw. -- not accepted
  Splachnum setaceum Michx. -- not accepted
  Splachnum sphaericum Hedw. -- accepted -- pinkstink dung moss
  Splachnum urceolatum Hedw. -- not accepted
  Splachnum vasculosum Hedw. -- accepted -- splachnum dung moss
  Splachnum wormskioldii Hornem. -- not accepted
  Steerecleus H. Rob. -- not accepted
  Steerecleus serrulatus (Hedw.) H. Rob. -- not accepted
  Stereodon (Brid.) Brid. -- accepted
  Stereodon adscendens Lindb. -- not accepted
  Stereodon alpicola Lindb. -- not accepted
  Stereodon bambergeri (Schimp.) Lindb. -- not accepted
  Stereodon callichrous (Brid.) Lindb. -- accepted
  Stereodon circinalis (Hook.) Mitt. -- not accepted
  Stereodon cupressiformis (Hedw.) Brid. ex Mitt. -- not accepted
  Stereodon curvifolius (Hedw.) Brid. -- not accepted
  Stereodon dieckii (Renauld & Cardot) Broth. -- not accepted
  Stereodon distichaceus Mitt. -- not accepted
  Stereodon fujiyamae Broth. -- not accepted
  Stereodon hamulosus (Schimp.) Lindb. -- accepted
  Stereodon holmenii (Ando) Ignatov & Ignatova -- accepted
  Stereodon imponens (Hedw.) Brid. ex Mitt. -- not accepted
  Stereodon intricatus (Hedw.) Lindb. & Arnell -- not accepted
  Stereodon micans Mitt. -- not accepted
  Stereodon molluscus (Hedw.) Mitt. -- not accepted
  Stereodon obtusifolius Mitt. -- not accepted
  Stereodon pallescens (Hedw.) Mitt. -- not accepted
  Stereodon patientiae (Lindb. ex Milde) Lindb. ex Jenn. -- not accepted
  Stereodon plicatulus Lindb. -- not accepted
  Stereodon polyanthos (Hedw.) Mitt. -- not accepted
  Stereodon pratensis (Koch ex Spruce) Warnst. -- accepted
  Stereodon recurvatus Lindb. & Arnell -- not accepted
  Stereodon revolutus Mitt. -- not accepted
  Stereodon richardsonii Mitt. -- not accepted
  Stereodon subdenticulatus (Schimp.) Mitt. -- not accepted
  Stereodon subimponens (Lesq.) Broth. -- accepted
  Stereodon taxirameus Mitt. -- not accepted
  Stereodon undulatus (Hedw.) Mitt. -- not accepted
  Stereodon vaucheri (Lesq.) Lindb. ex Broth. -- not accepted
  Stereodon vernicosus Mitt. -- not accepted
  Stereophyllaceae -- accepted
  Stereophyllum Mitt. -- accepted
  Stereophyllum chlorophyllum (Hornsch.) Mitt. -- not accepted
  Stereophyllum indicum (Bél.) Mitt. -- not accepted
  Stereophyllum radiculosulum (Müll. Hal.) A. Jaeger -- not accepted
  Stereophyllum radiculosum (Hook.) Mitt. -- accepted
  Stereophyllum wrightii (Sull.) Renauld & Cardot -- not accepted
  Straminergon Hedenäs -- accepted
  Straminergon stramineum (Dicks. ex Brid.) Hedenäs -- accepted
  Syrrhopodon reinwardtii Hornsch. -- not accepted
  Taxiphyllum M. Fleisch. -- accepted
  Taxiphyllum alternans (Cardot) Z. Iwats. -- accepted
  Taxiphyllum andersonii (E.B. Bartram) H.A. Crum -- not accepted
  Taxiphyllum cuspidifolium (Cardot) Z. Iwats. -- accepted -- toothleaf taxiphyllum moss
  Taxiphyllum deplanatum (Bruch & Schimp. ex Sull.) M. Fleisch. -- accepted
  Taxiphyllum geophilum (Austin) M. Fleisch. -- not accepted
  Taxiphyllum howellianum H.A. Crum & L.E. Anderson -- not accepted
  Taxiphyllum mariannae (Grout) Schornh. -- not accepted
  Taxiphyllum sharpii (H.A. Crum & L.E. Anderson) H. Rob. -- not accepted
  Taxiphyllum taxirameum (Mitt.) M. Fleisch. -- accepted
  Taxithelium Spruce ex Mitt. -- accepted
  Taxithelium planum (Brid.) Mitt. -- accepted
  Taxithelium vivicolor Broth. & Dixon -- not accepted
  Tayloria Hook. -- accepted -- tayloria dung moss
  Tayloria acuminata Hornsch. -- accepted -- acuminate dung moss
  Tayloria froelichiana (Hedw.) Mitt. ex Broth. -- accepted -- Froelich's dung moss
  Tayloria hornschuchii (Grev. & Arn.) Broth. -- accepted -- Hornschuch's dung moss
  Tayloria lingulata (Dicks.) Lindb. -- accepted -- lingulate dung moss
  Tayloria serrata (Hedw.) Bruch & Schimp. -- accepted -- serrate dung moss
  Tayloria serrata ssp. acuminata (Hornsch.) J.J. Amann -- not accepted
  Tayloria splachnoides (Schleich. ex Schwägr.) Hook. -- accepted -- splachnoid dung moss
  Tayloria splachnoides ssp. acuminata (Hornsch.) Kindb. -- not accepted
  Tayloria splachnoides var. acuminata (Hornsch.) Huebener -- not accepted
  Tetraplodon Bruch & Schimp. -- accepted -- nitrogen moss
  Tetraplodon angustatus (Hedw.) Bruch & Schimp. -- accepted -- toothedleaf nitrogen moss
  Tetraplodon mnioides (Hedw.) Bruch & Schimp. -- accepted -- entireleaf nitrogen moss
  Tetraplodon mnioides ssp. pallidus (I. Hagen) Kindb. -- not accepted
  Tetraplodon mnioides var. cavifolius Schimp. -- not accepted
  Tetraplodon mnioides var. paradoxus (R. Br.) C.E.O. Jensen -- not accepted
  Tetraplodon pallidus I. Hagen -- accepted -- pale nitrogen moss
  Tetraplodon paradoxus (R. Br.) I. Hagen -- accepted -- paradox nitrogen moss
  Tetraplodon urceolatus (Hedw.) Bruch & Schimp. -- accepted -- urceolate nitrogen moss
  Thamnium Schimp. -- not accepted
  Thamnium holzingeri Renauld & Cardot -- not accepted
  Thamnium vancouveriense (Kindb.) E. Lawton -- not accepted
  Thamnobryum Nieuwl. -- accepted
  Thamnobryum alleghaniense (Müll. Hal.) Nieuwl. -- accepted -- Allegany thamnobryum moss
  Thamnobryum bigelovii (Sull.) Nieuwl. -- not accepted
  Thamnobryum neckeroides (Hook.) E. Lawton -- accepted -- Necker's thamnobryum moss
  Thelia Sull. -- accepted
  Thelia asprella (Schimp.) Sull. -- accepted
  Thelia asprella var. lescurii (Sull.) Renauld & Cardot -- not accepted
  Thelia hirtella (Hedw.) Sull. -- accepted
  Thelia lescurii Sull. -- accepted -- Lescur's thelia moss
  Theliaceae -- accepted
  Thuidiaceae -- accepted
  Thuidium Bruch & Schimp. -- accepted
  Thuidium abietinum (Hedw.) Schimp. -- not accepted
  Thuidium alleniorum Austin -- accepted
  Thuidium blandowii (F. Weber & D. Mohr) Schimp. -- not accepted
  Thuidium delicatulum (Hedw.) Schimp. -- accepted -- delicate thuidium moss
  Thuidium delicatulum var. delicatulum (Hedw.) Schimp. -- accepted
  Thuidium delicatulum var. radicans (Kindb.) H.A. Crum, Steere & L.E. Anderson -- accepted
  Thuidium elodioides Renauld & Cardot -- not accepted
  Thuidium glaucinum var. ludovicianum Cardot -- not accepted
  Thuidium involvens (Hedw.) Mitt. -- not accepted
  Thuidium minutulum (Hedw.) Schimp. -- not accepted
  Thuidium paludosum (Austin) Rau & Herv. -- not accepted
  Thuidium paludosum var. elodioides (Renauld & Cardot) Best -- not accepted
  Thuidium philibertii Limpr. -- not accepted -- Philibert's thuidium moss
  Thuidium pygmaeum Schimp. -- not accepted
  Thuidium recognitum (Hedw.) Lindb. -- accepted
  Thuidium recognitum ssp. philibertii (Limpr.) Dixon -- not accepted
  Thuidium recognitum var. delicatulum (Hedw.) Warnst. -- not accepted
  Thuidium recognitum var. radicans Kindb. -- not accepted
  Thuidium sachalinense Lindb. -- not accepted
  Thuidium schistocalyx (Müll. Hal.) Mitt. -- not accepted
  Thuidium scitum (P. Beauv.) Austin -- not accepted
  Thuidium scitum var. aestivale Austin -- not accepted
  Thuidium tamariscinum (Hedw.) Schimp. -- accepted -- tamarisk thuidium moss
  Thuidium vancouveriense Kindb. -- not accepted
  Tomentypnum Loeske -- accepted
  Tomentypnum falcifolium (Renauld ex Nichols) Tuom. -- accepted -- sickleleaf tomentypnum moss
  Tomentypnum nitens (Hedw.) Loeske -- accepted
  Tomentypnum nitens var. falcifolium (Renauld ex Nichols) Podp. -- not accepted
  Tomentypnum nitens var. involutum (Limpr.) C.E.O. Jensen -- not accepted
  Trachybryum (Broth.) W.B. Schofield -- not accepted
  Trachybryum megaptilum (Sull.) W.B. Schofield -- not accepted
  Trachycystis Lindb. -- accepted
  Trachycystis flagellaris (Sull. & Lesq.) Lindb. -- accepted
  Trachyxiphium W.R. Buck -- accepted
  Trachyxiphium heteroicum (Cardot) W.R. Buck -- not accepted
  Trachyxiphium hypnaceum (Müll. Hal.) W.R. Buck -- accepted
  Tricholepis nigrescens (Sw. ex Hedw.) Grout -- not accepted
  Tricholepis nigrescens var. donnellii (Austin) Grout -- not accepted
  Tripterocladium (Müll. Hal.) A. Jaeger -- accepted
  Tripterocladium leucocladulum (Müll. Hal.) A. Jaeger -- accepted
  Ulota D. Mohr -- accepted
  Ulota alaskana Cardot & Thér. -- not accepted
  Ulota americana (P. Beauv.) Limpr. -- not accepted
  Ulota americana Mitt. -- not accepted
  Ulota barclayi Mitt. -- accepted
  Ulota bicolor Brid. -- not accepted
  Ulota coarctata (P. Beauv.) Hammar -- accepted
  Ulota connectens (Kindb.) Kindb. -- not accepted
  Ulota crispa (Hedw.) Brid. -- accepted
  Ulota crispula Bruch -- accepted
  Ulota curvifolia (Wahlenb.) Lilj. -- accepted -- curvedleaf ulota moss
  Ulota drummondii (Hook. & Grev.) Brid. -- accepted -- Drummond's ulota moss
  Ulota funstonii Grout -- not accepted
  Ulota hutchinsiae (Sm.) Hammar -- accepted -- Hutchins' ulota moss
  Ulota hutchinsiae var. hutchinsiae (Sm.) Hammar -- accepted -- Hutchins' ulota moss
  Ulota hutchinsiae var. rufescens (E. Britton) Dixon -- accepted -- Hutchins' ulota moss
  Ulota ludwigii (Brid.) Brid. -- not accepted
  Ulota maritima Müll. Hal. & Kindb. -- not accepted
  Ulota megalospora Venturi -- accepted -- largespore ulota moss
  Ulota obtusiuscula Müll. Hal. & Kindb. -- accepted
  Ulota phyllantha Brid. -- not accepted
  Ulota subulata Kindb. -- not accepted
  Ulota subulifolia Müll. Hal. & Kindb. -- not accepted
  Vesicularia (Müll. Hal.) Müll. Hal. -- accepted
  Vesicularia caloosiensis (Austin) H.A. Crum -- not accepted
  Vesicularia vesicularis (Schwägr.) Broth. -- accepted
  Voitia Hornsch. -- accepted
  Voitia hookeri Mitt. -- not accepted
  Voitia hyperborea Grev. & Arn. -- accepted
  Voitia nivalis Hornsch. -- accepted
  Voitia nivalis var. hyperborea (Grev. & Arn.) Schimp. -- not accepted
  Warnstorfia Loeske -- accepted
  Warnstorfia exannulata (Schimp.) Loeske -- not accepted
  Warnstorfia exannulata var. purpurascens (Schimp.) Tuom. & T.J. Kop. -- not accepted
  Warnstorfia fluitans (Hedw.) Loeske -- accepted
  Warnstorfia pseudosarmentosa (Cardot & Thér.) Tuom. & T.J. Kop. -- not accepted
  Warnstorfia pseudostraminea (Müll. Hal.) Tuom. & T.J. Kop. -- accepted
  Warnstorfia sarmentosa (Wahlenb.) Hedenäs -- not accepted
  Warnstorfia trichophylla (Warnst.) Tuom. & T.J. Kop. -- not accepted
  Warnstorfia tundrae (Arnell) Loeske -- not accepted -- tundra warnstorfia moss
  Webera andalusica Höhn. -- not accepted
  Webera bulbifera Warnst. -- not accepted
  Webera camptotrachela Renauld & Cardot -- not accepted
  Webera cardotii Renauld -- not accepted
  Webera columbica Kindb. -- not accepted
  Webera longicolla Hedw. -- not accepted
  Webera nutans Hedw. -- not accepted
  Webera proligera Kindb. -- not accepted
  Webera pyriformis Hedw. -- not accepted
  Weissia americana var. rufescens E. Britton -- not accepted
  Weissia elongata Hoppe & Hornsch. -- not accepted
  Weissia macrocarpa Hook. -- not accepted
  Weissia mielichhoferiana Funck -- not accepted
  Weissia nigrita Hedw. -- not accepted
  Weissia striata (Hedw.) Schreb. ex G. Gaertn., B. Mey. & Scherb. -- not accepted
  Weissia turbinata Drumm. -- not accepted
  Wijkia H.A. Crum -- accepted
  Wijkia carlottae (W.B. Schofield) H.A. Crum -- accepted -- Carlott's wijkia moss
  Zelometeorium Manuel -- accepted
  Zelometeorium patulum (Hedw.) Manuel -- accepted
  Zieria Schimp. -- not accepted
  Zygodon Hook. & Taylor -- accepted
  Zygodon apiculatus Redf. -- not accepted
  Zygodon californicus Hampe ex Müll. Hal. -- not accepted
  Zygodon conoideus (Dicks.) Hook. & Taylor -- accepted
  Zygodon drummondii Taylor -- not accepted
  Zygodon gracilis Wilson -- accepted
  Zygodon menziesii (Schwägr.) Arn. -- accepted
  Zygodon mougeotii Bruch & Schimp. -- not accepted
  Zygodon reinwardtii (Hornsch.) A. Braun -- accepted -- Reinwardt's zygodon moss
  Zygodon reinwardtii var. subintegrifolius Malta -- not accepted
  Zygodon viridissimus (Dicks.) Brid. -- accepted
  Zygodon viridissimus var. dentatus Limpr. -- accepted
  Zygodon viridissimus var. rupestris Lindb. ex Hartm. -- accepted
  Zygodon viridissimus var. viridissimus (Dicks.) Brid. -- accepted
   

A gray bar