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Taxon author: Peck

ITIS records citing taxon author "Peck"
 
 Kingdom Animalia
  Acragas fallax (Peckham & Peckham, 1896) -- valid
  Acragas hieroglyphicus (Peckham & Peckham, 1896) -- valid
  Acragas longipalpus (Peckham & Peckham, 1885) -- valid
  Acragas pacatus (Peckham & Peckham, 1896) -- valid
  Adelopsis alleghenyensis Peck, 1979 -- invalid
  Adelopsis alta Peck, 1979 -- invalid
  Adelopsis appalachiana Peck, 1979 -- invalid
  Adelopsis bedfordensis Peck, 1979 -- invalid
  Adelopsis cumberlanda Peck, 1979 -- invalid
  Adelopsis fumosa Peck, 1979 -- invalid
  Adelopsis joanna Peck, 1979 -- invalid
  Adelopsis jonesi Peck, 1979 -- invalid
  Adelopsis nashvillensis Peck, 1979 -- invalid
  Adelopsis orichalcum Peck, 1979 -- invalid
  Adelopsis pisgahensis Peck, 1979 -- invalid
  Adelopsis richlandensis Peck, 1979 -- invalid
  Adelopsis scottsboroensis Peck, 1979 -- invalid
  Adelopsis steevesi Peck, 1979 -- invalid
  Adelopsis suteri Peck, 1979 -- invalid
  Admestina Peckham & Peckham, 1888 -- valid
  Admestina wheeleri Peckham & Peckham, 1888 -- valid
  Afraflacilla bipunctata (Peckham & Peckham, 1903) -- valid
  Afraflacilla braunsi (Peckham & Peckham, 1903) -- valid
  Afromarengo bimaculata (Peckham & Peckham, 1903) -- valid
  Akela Peckham & Peckham, 1896 -- valid
  Akela charlottae Peckham & Peckham, 1896 -- valid
  Aleochara beckeri Klimaszewski in Klimaszewski, Frank and Peck, 1990 -- valid
  Aleochara pseudolustrica Klimaszewski in Klimaszewski, Frank and Peck, 1990 -- valid
  Alloweckelia Holsinger and Peck, 1968 -- valid
  Alloweckelia gurneei Holsinger and Peck, 1968 -- valid
  Aloconota diversiseta Klimaszewski and Peck, 1986 -- valid
  Aloconota neospelea Klimaszewski and Peck, 1986 -- valid
  Ammodramus savannarum cracens (Bangs & Peck, 1908) -- valid
  Anasaitis morgani (Peckham & Peckham, 1901) -- valid
  Anasaitis perplexa (Peckham & Peckham, 1901) -- valid
  Anasaitis venatoria (Peckham & Peckham, 1901) -- valid
  Anelaphus putator (Peck, 1819) -- invalid
  Anogdus alachua Peck and Cook, 2013 -- valid
  Anogdus cochise Peck and Cook, 2013 -- valid
  Anogdus huachuca Peck and Cook, 2013 -- valid
  Anogdus rileyi Peck and Cook, 2013 -- valid
  Anogdus texanus Peck and Cook, 2013 -- valid
  Anogdus tridens Peck and Cook, 2013 -- valid
  Antrodiaetus ashlandensis Cokendolpher, Peck & Niwa, 2005 -- valid
  Antrodiaetus coylei Cokendolpher, Peck & Niwa, 2005 -- valid
  Antrodiaetus effeminatus Cokendolpher, Peck & Niwa, 2005 -- valid
  Antrodiaetus metapacificus Cokendolpher, Peck & Niwa, 2005 -- valid
  Antrostomus badius Bangs & Peck, 1908 -- valid -- Yucatan Nightjar
  Asemonea ornatissima Peckham, Peckham & Wheeler, 1889 -- valid
  Ashtabula Peckham & Peckham, 1894 -- valid
  Ashtabula zonura Peckham & Peckham, 1894 -- valid
  Atheta alabama Klimaszewski and Peck, 1986 -- valid
  Atheta lucifuga Klimaszewski and Peck, 1986 -- valid
  Atheta troglophila Klimaszewski and Peck, 1986 -- valid
  Attidops youngi (Peckham & Peckham, 1888) -- valid
  Avitus Peckham & Peckham, 1896 -- valid
  Avitus diolenii Peckham & Peckham, 1896 -- valid
  Avitus taylori (Peckham & Peckham, 1901) -- valid
  Aymaria floreana (Gertsch & Peck, 1992) -- valid
  Aymaria jarmila (Gertsch & Peck, 1992) -- valid
  Bagheera Peckham & Peckham, 1896 -- valid
  Bagheera kiplingi Peckham & Peckham, 1896 -- valid
  Bagheera prosper (Peckham & Peckham, 1901) -- valid
  Balmaceda Peckham & Peckham, 1894 -- valid
  Balmaceda picta Peckham & Peckham, 1894 -- valid
  Baryphas woodi (Peckham & Peckham, 1902) -- invalid
  Bathippus sedatus Peckham & Peckham, 1907 -- invalid
  Bathippus shelfordi Peckham & Peckham, 1907 -- invalid
  Bavia albolineata Peckham & Peckham, 1885 -- valid
  Beata Peckham & Peckham, 1895 -- valid
  Beata fausta (Peckham & Peckham, 1901) -- valid
  Beata hispida (Peckham & Peckham, 1901) -- valid
  Beata inconcinna (Peckham & Peckham, 1895) -- valid
  Beata maccuni (Peckham & Peckham, 1895) -- valid
  Beata magna Peckham & Peckham, 1895 -- valid
  Beata octopunctata (Peckham & Peckham, 1894) -- valid
  Beata pernix (Peckham & Peckham, 1901) -- valid
  Beata rustica (Peckham & Peckham, 1895) -- valid
  Beata wickhami (Peckham & Peckham, 1894) -- valid
  Bellota Peckham & Peckham, 1892 -- valid
  Bellota micans Peckham & Peckham, 1909 -- valid
  Bellota wheeleri Peckham & Peckham, 1909 -- valid
  Bianor Peckham & Peckham, 1886 -- valid
  Bocus Peckham & Peckham, 1892 -- valid
  Bocus excelsus Peckham & Peckham, 1892 -- valid
  Brazilozoros Kukalova-Peck and Peck, 1993 -- invalid
  Breda Peckham & Peckham, 1894 -- valid
  Brettus madagascarensis (Peckham & Peckham, 1903) -- valid
  Calositticus floricola palustris (Peckham & Peckham, 1883) -- valid
  Canama rutila Peckham & Peckham, 1907 -- valid
  Caprimulgus badius (Bangs & Peck, 1908) -- invalid -- Tapacamino huil, Yucatan Nightjar
  Caribattus inutilis (Peckham & Peckham, 1901) -- valid
  Carrhotus olivaceus (Peckham & Peckham, 1907) -- valid
  Catopocerus alabamae Peck, 1975 -- valid
  Catopocerus appalachianus Peck, 1975 -- valid
  Catopocerus jonesi Peck, 1975 -- valid
  Catops apterus Peck and Cook, 2002 -- valid
  Catops geomysi Peck and Skelley, 2001 -- valid
  Catops meridionalis Peck and Cook, 2002 -- invalid
  Catops neomeridionalis Peck and Cook, 2004 -- valid
  Catops newtoni Peck, 1977 -- valid
  Catops paramericanus Peck and Cook, 2002 -- valid
  Centrozoros Kukalova-Peck and Peck, 1993 -- invalid
  Ceriomura cruenta (Peckham & Peckham, 1894) -- valid
  Ceriomura perita (Peckham & Peckham, 1894) -- valid
  Cerionesta luteola (Peckham & Peckham, 1894) -- valid
  Chapoda Peckham & Peckham, 1896 -- valid
  Chapoda festiva Peckham & Peckham, 1896 -- valid
  Chapoda recondita (Peckham & Peckham, 1896) -- valid
  Chinoscopus flavus (Peckham, Peckham & Wheeler, 1889) -- valid
  Chira Peckham & Peckham, 1896 -- valid
  Cobanus extensus (Peckham & Peckham, 1896) -- valid
  Cobanus flavens (Peckham & Peckham, 1896) -- invalid
  Cobanus mandibularis (Peckham & Peckham, 1896) -- invalid
  Colenis (Colenodes) Peck, 1998 -- valid
  Colenis bifida Peck, 1998 -- valid
  Colenis ora Peck, 1998 -- valid
  Colenis stephani Peck, 1998 -- valid
  Colon (Striatocolon) Peck and Stephan, 1996 -- valid
  Colon (Tricolon) Peck and Stephan, 1996 -- valid
  Colon arcum Peck and Stephan, 1996 -- valid
  Colon blatchleyi Peck and Stephan, 1996 -- valid
  Colon boreale Peck and Stephan, 1996 -- valid
  Colon californicum Peck and Stephan, 1996 -- valid
  Colon chihuahua Peck and Stephan, 1996 -- valid
  Colon chiricahua Peck and Stephan, 1996 -- valid
  Colon grossum Peck and Stephan, 1996 -- valid
  Colon hatchi Peck and Stephan, 1996 -- valid
  Colon hesperium Peck and Stephan, 1996 -- valid
  Colon incisum Peck and Stephan, 1996 -- valid
  Colon longitorsum Peck and Stephan, 1996 -- valid
  Colon megasetosum Peck and Stephan, 1996 -- valid
  Colon mesum Peck and Stephan, 1996 -- valid
  Colon monstrosum Peck and Stephan, 1996 -- valid
  Colon nitidum Peck and Stephan, 1996 -- valid
  Colon pacificum Peck and Stephan, 1996 -- valid
  Colon pararectum Peck and Stephan, 1996 -- valid
  Colon politum Peck and Stephan, 1996 -- valid
  Colon potosi Peck and Stephan, 1996 -- valid
  Colon similare Peck and Stephan, 1996 -- valid
  Colon vancouverense Peck and Stephan, 1996 -- valid
  Colon xilitla Peck and Stephan, 1996 -- valid
  Compsodecta defloccata (Peckham & Peckham, 1901) -- valid
  Compsodecta grisea (Peckham & Peckham, 1901) -- valid
  Copocrossa bimaculata Peckham & Peckham, 1903 -- invalid
  Coryphasia viaria (Peckham & Peckham, 1901) -- valid
  Corythalia alacris (Peckham & Peckham, 1896) -- valid
  Corythalia blanda (Peckham & Peckham, 1901) -- valid
  Corythalia conspecta (Peckham & Peckham, 1896) -- valid
  Corythalia electa (Peckham & Peckham, 1901) -- valid
  Corythalia fimbriata (Peckham & Peckham, 1901) -- valid
  Corythalia grata (Peckham & Peckham, 1901) -- valid
  Corythalia metallica (Peckham & Peckham, 1895) -- valid
  Corythalia opima (Peckham & Peckham, 1885) -- valid
  Corythalia parva (Peckham & Peckham, 1901) -- valid
  Corythalia parvula (Peckham & Peckham, 1896) -- valid
  Corythalia placata (Peckham & Peckham, 1901) -- valid
  Corythalia valida (Peckham & Peckham, 1901) -- valid
  Cotinusa deserta (Peckham & Peckham, 1894) -- valid
  Cotinusa distincta (Peckham & Peckham, 1888) -- valid
  Cotinusa gemmea (Peckham & Peckham, 1894) -- valid
  Cotinusa horatia (Peckham & Peckham, 1894) -- valid
  Cotinusa magna (Peckham & Peckham, 1894) -- valid
  Ctenus exlineae Peck, 1981 -- valid
  Ctenus valverdiensis Peck, 1981 -- valid
  Cyrba armillata Peckham & Peckham, 1907 -- invalid
  Cyrba dotata Peckham & Peckham, 1903 -- valid
  Damoetas Peckham & Peckham, 1886 -- valid
  Dendryphantes lepidus (Peckham & Peckham, 1901) -- valid
  Dendryphantes purcelli Peckham & Peckham, 1903 -- valid
  Derolathrus cavernicolus Peck, 2010 -- valid
  Descanso Peckham & Peckham, 1892 -- valid
  Descanso chapoda Peckham & Peckham, 1892 -- valid
  Descanso vagus Peckham & Peckham, 1892 -- valid
  Emathis armillata (Peckham & Peckham, 1907) -- valid
  Emertonius Peckham & Peckham, 1892 -- valid
  Emertonius exasperans (Peckham & Peckham, 1892) -- valid
  Emertonius shelfordi (Peckham & Peckham, 1907) -- valid
  Empanda ornata (Peckham & Peckham, 1885) -- valid
  Epeus Peckham & Peckham, 1886 -- valid
  Epeus mirus (Peckham & Peckham, 1907) -- valid
  Erasinus gracilis Peckham & Peckham, 1907 -- valid
  Ergane benjarei (Peckham & Peckham, 1907) -- valid
  Erica Peckham & Peckham, 1892 -- valid
  Erica eugenia Peckham & Peckham, 1892 -- valid
  Eris flava (Peckham & Peckham, 1888) -- valid
  Euophrys infausta Peckham & Peckham, 1903 -- invalid
  Euophrys leipoldti Peckham & Peckham, 1903 -- valid
  Euophrys newtoni Peckham & Peckham, 1896 -- valid
  Euophrys pulchella Peckham & Peckham, 1894 -- valid
  Euophrys purcelli Peckham & Peckham, 1903 -- valid
  Euophrys uphami (Peckham & Peckham, 1903) -- valid
  Euophrys ysobolii Peckham & Peckham, 1896 -- valid
  Eustiromastix obscurus (Peckham & Peckham, 1894) -- valid
  Eustiromastix vincenti (Peckham & Peckham, 1894) -- valid
  Evarcha alba (Peckham & Peckham, 1903) -- valid
  Evarcha annae (Peckham & Peckham, 1903) -- valid
  Evarcha hoyi (Peckham & Peckham, 1883) -- valid
  Floridazoros Kukalova-Peck and Peck, 1993 -- invalid
  Floridoxenos Kathirithamby and Peck, 1994 -- valid
  Floridoxenos monroensis Kathirithamby and Peck, 1994 -- valid
  Fluda Peckham & Peckham, 1892 -- valid
  Fluda narcissa Peckham & Peckham, 1892 -- valid
  Fluda opica (Peckham & Peckham, 1892) -- valid
  Fluda perdita (Peckham & Peckham, 1892) -- valid
  Freya regia (Peckham & Peckham, 1896) -- valid
  Freya rustica (Peckham & Peckham, 1896) -- invalid
  Frigga pratensis (Peckham & Peckham, 1885) -- valid
  Fuentes Peckham & Peckham, 1894 -- valid
  Fuentes pertinax Peckham & Peckham, 1894 -- valid
  Galapa baerti (Gertsch & Peck, 1992) -- valid
  Galapa bella (Gertsch & Peck, 1992) -- valid
  Gastromicans hondurensis (Peckham & Peckham, 1896) -- valid
  Gastromicans vigens (Peckham & Peckham, 1901) -- valid
  Goleba punctata (Peckham, Peckham & Wheeler, 1889) -- valid
  Goleta Peckham & Peckham, 1894 -- valid
  Goleta workmani (Peckham & Peckham, 1885) -- valid
  Habrocestum laurae Peckham & Peckham, 1903 -- valid
  Habrocestum luculentum Peckham & Peckham, 1903 -- valid
  Habrocestum sapiens (Peckham & Peckham, 1903) -- valid
  Habronattus amicus (Peckham & Peckham, 1909) -- valid
  Habronattus banksi (Peckham & Peckham, 1901) -- valid
  Habronattus brunneus (Peckham & Peckham, 1901) -- valid
  Habronattus carolinensis (Peckham & Peckham, 1901) -- valid
  Habronattus cognatus (Peckham & Peckham, 1901) -- valid
  Habronattus delectus (Peckham & Peckham, 1909) -- valid
  Habronattus elegans (Peckham & Peckham, 1901) -- valid
  Habronattus fallax (Peckham & Peckham, 1909) -- valid
  Habronattus festus (Peckham & Peckham, 1901) -- valid
  Habronattus hirsutus (Peckham & Peckham, 1888) -- valid
  Habronattus jucundus (Peckham & Peckham, 1909) -- valid
  Habronattus klauseri (Peckham & Peckham, 1901) -- valid
  Habronattus mexicanus (Peckham & Peckham, 1896) -- valid
  Habronattus nemoralis (Peckham & Peckham, 1901) -- valid
  Habronattus oregonensis (Peckham & Peckham, 1888) -- valid
  Habronattus paratus (Peckham & Peckham, 1896) -- valid
  Habronattus sabulosus (Peckham & Peckham, 1901) -- valid
  Habronattus simplex (Peckham & Peckham, 1901) -- valid
  Habronattus superciliosus (Peckham & Peckham, 1901) -- valid
  Habronattus tranquillus (Peckham & Peckham, 1901) -- valid
  Hasarius bellicosus Peckham & Peckham, 1896 -- valid
  Heliophanus deamatus Peckham & Peckham, 1903 -- valid
  Heliophanus infaustus (Peckham & Peckham, 1903) -- valid
  Heliophanus marshalli Peckham & Peckham, 1903 -- valid
  Heliophanus modicus Peckham & Peckham, 1903 -- valid
  Heliophanus pratti Peckham & Peckham, 1903 -- valid
  Helvetia Peckham & Peckham, 1894 -- valid
  Helvetia santarema Peckham & Peckham, 1894 -- valid
  Hentzia grenada (Peckham & Peckham, 1894) -- valid
  Hentzia parallela (Peckham & Peckham, 1894) -- valid
  Hentzia vernalis (Peckham & Peckham, 1894) -- valid
  Hermosa Peckham & Peckham, 1892 -- valid
  Hermosa volatilis Peckham & Peckham, 1892 -- valid
  Hispo georgius (Peckham & Peckham, 1892) -- valid
  Homalattus marshalli Peckham & Peckham, 1903 -- valid
  Homalattus obscurus Peckham & Peckham, 1903 -- valid
  Homalattus punctatus Peckham & Peckham, 1903 -- valid
  Homalattus similis Peckham & Peckham, 1903 -- valid
  Hydnobius acarinus Peck and Cook, 2009 -- valid
  Hydnobius autumnalis Peck and Cook, 2009 -- valid
  Hyllus dotatus (Peckham & Peckham, 1903) -- valid
  Hyllus nebulosus Peckham & Peckham, 1907 -- valid
  Hyllus pulcherrimus Peckham & Peckham, 1907 -- valid
  Hyllus treleaveni Peckham & Peckham, 1902 -- valid
  Hyllus vinsoni (Peckham & Peckham, 1885) -- valid
  Hypaeus benignus (Peckham & Peckham, 1885) -- valid
  Hypoblemum Peckham & Peckham, 1886 -- valid
  Iona Peckham & Peckham, 1886 -- valid
  Irura Peckham & Peckham, 1901 -- valid
  Irura pulchra Peckham & Peckham, 1901 -- valid
  Isoplastus floridanus Peck and Cook, 2013 -- valid
  Itata Peckham & Peckham, 1894 -- valid
  Itata vadia Peckham & Peckham, 1894 -- valid
  Jollas pompatus (Peckham & Peckham, 1894) -- valid
  Jotus frosti Peckham & Peckham, 1901 -- valid
  Kalohydnobius Peck and Cook, 2009 -- valid
  Kalohydnobius californicus Peck and Cook, 2009 -- valid
  Kalohydnobius dentatus Peck and Cook, 2009 -- valid
  Kima Peckham & Peckham, 1902 -- valid
  Kima africana Peckham & Peckham, 1902 -- valid
  Kima variabilis Peckham & Peckham, 1903 -- valid
  Klamathia Peckham & Peckham, 1903 -- invalid
  Klamathia flava Peckham & Peckham, 1903 -- invalid
  Langona avara Peckham & Peckham, 1903 -- valid
  Latinozoros Kukalova-Peck and Peck, 1993 -- invalid
  Leptinus occidentamericanus Peck, 1982 -- valid
  Leptinus orientamericanus Peck, 1982 -- valid
  Leptoctenus gertschi Peck, 1981 -- valid
  Leptoctenus sonoraensis Peck, 1981 -- valid
  Lionothus bidentatus Peck and Cook, 2013 -- valid
  Lionothus exiguus Peck and Cook, 2013 -- valid
  Lionothus parvoculus Peck and Cook, 2013 -- valid
  Lygromma anops Peck & Shear, 1987 -- valid
  Lyssomanes amazonicus Peckham, Peckham & Wheeler, 1889 -- valid
  Lyssomanes antillanus Peckham, Peckham & Wheeler, 1889 -- valid
  Lyssomanes antillanus antillanus Peckham & Wheeler, 1889 -- valid
  Lyssomanes austerus Peckham, Peckham & Wheeler, 1889 -- valid
  Lyssomanes bitaeniatus Peckham, Peckham & Wheeler, 1889 -- valid
  Lyssomanes blandus Peckham, Peckham & Wheeler, 1889 -- valid
  Lyssomanes jemineus Peckham, Peckham & Wheeler, 1889 -- valid
  Lyssomanes miniaceus Peckham, Peckham & Wheeler, 1889 -- valid
  Lyssomanes nigropictus Peckham, Peckham & Wheeler, 1889 -- valid
  Lyssomanes parallelus Peckham, Peckham & Wheeler, 1889 -- valid
  Lyssomanes patens Peckham & Peckham, 1896 -- valid
  Lyssomanes placidus Peckham, Peckham & Wheeler, 1889 -- valid
  Lyssomanes reductus Peckham & Peckham, 1896 -- valid
  Lyssomanes remotus Peckham & Peckham, 1896 -- valid
  Lyssomanes tenuis Peckham, Peckham & Wheeler, 1889 -- valid
  Lyssomanes tristis Peckham, Peckham & Wheeler, 1889 -- valid
  Lyssomanes velox Peckham, Peckham & Wheeler, 1889 -- valid
  Macrohydnobius Peck and Cook, 2009 -- valid
  Macrohydnobius montanus Peck and Cook, 2009 -- valid
  Macrohydnobius tibiocalcaris Peck and Cook, 2009 -- valid
  Maeotella perplexa (Peckham & Peckham, 1901) -- invalid
  Maevia poultoni Peckham & Peckham, 1901 -- invalid
  Maileus Peckham & Peckham, 1907 -- valid
  Maileus fuscus Peckham & Peckham, 1907 -- valid
  Mantius armipotens Peckham & Peckham, 1907 -- valid
  Mantius difficilis Peckham & Peckham, 1907 -- valid
  Marchena Peckham & Peckham, 1909 -- valid
  Marchena minuta (Peckham & Peckham, 1888) -- valid
  Marengo Peckham & Peckham, 1892 -- valid
  Marengo crassipes Peckham & Peckham, 1892 -- valid
  Margaromma spatiosum Peckham & Peckham, 1907 -- valid
  Marpissa agricola (Peckham & Peckham, 1894) -- valid
  Marpissa milleri (Peckham & Peckham, 1894) -- valid
  Marpissa pikei (Peckham & Peckham, 1888) -- valid -- Pike slender jumper
  Martella Peckham & Peckham, 1892 -- valid
  Martella maria Peckham & Peckham, 1892 -- valid
  Martella pottsi Peckham & Peckham, 1892 -- valid
  Massagris mirifica Peckham & Peckham, 1903 -- valid
  Mendoza Peckham & Peckham, 1894 -- valid
  Menemerus bicolor Peckham & Peckham, 1896 -- valid
  Menemerus carlini (Peckham & Peckham, 1903) -- valid
  Meridozoros Kukalova-Peck and Peck, 1993 -- invalid
  Messua Peckham & Peckham, 1896 -- valid
  Messua centralis (Peckham & Peckham, 1896) -- valid
  Messua desidiosa Peckham & Peckham, 1896 -- valid
  Messua felix (Peckham & Peckham, 1901) -- valid
  Metacyrba punctata (Peckham & Peckham, 1894) -- valid
  Metagonia bellavista Gertsch & Peck, 1992 -- valid
  Metagonia reederi Gertsch & Peck, 1992 -- valid
  Metaphidippus albopilosus (Peckham & Peckham, 1901) -- valid
  Metaphidippus dubitabilis (Peckham & Peckham, 1896) -- valid
  Metaphidippus felix (Peckham & Peckham, 1901) -- invalid
  Metaphidippus fortunatus (Peckham & Peckham, 1901) -- valid
  Metaphidippus laetabilis (Peckham & Peckham, 1896) -- valid
  Metaphidippus manni (Peckham & Peckham, 1901) -- valid
  Metaphidippus nitidus (Peckham & Peckham, 1896) -- valid
  Metaphidippus odiosus (Peckham & Peckham, 1901) -- valid
  Metaphidippus perfectus (Peckham & Peckham, 1901) -- valid
  Metaphidippus siticulosus (Peckham & Peckham, 1909) -- valid
  Metaphidippus smithi (Peckham & Peckham, 1901) -- valid
  Metaphidippus tropicus (Peckham & Peckham, 1901) -- valid
  Mexcala Peckham & Peckham, 1902 -- valid
  Mexcala elegans Peckham & Peckham, 1903 -- valid
  Mexcala rufa Peckham & Peckham, 1902 -- valid
  Mexigonus morosus (Peckham & Peckham, 1888) -- valid
  Microhasarius animosus Peckham & Peckham, 1907 -- valid
  Modisimus modicus (Gertsch & Peck, 1992) -- valid
  Modisimus solus Gertsch & Peck, 1992 -- valid
  Mogrus woodi (Peckham & Peckham, 1902) -- valid
  Myrmage imbellis (Peckham & Peckham, 1892) -- valid
  Myrmapana centralis (Peckham & Peckham, 1892) -- valid
  Myrmapeni borneensis (Peckham & Peckham, 1907) -- valid
  Myrmarachne augusta (Peckham & Peckham, 1892) -- valid
  Myrmarachne borneensis Peckham & Peckham, 1907 -- invalid
  Myrmarachne centralis (Peckham & Peckham, 1892) -- invalid
  Myrmarachne cowani (Peckham & Peckham, 1892) -- valid
  Myrmarachne dubia (Peckham & Peckham, 1892) -- valid
  Myrmarachne edentula (Peckham & Peckham, 1892) -- valid
  Myrmarachne electrica (Peckham & Peckham, 1892) -- invalid
  Myrmarachne exasperans (Peckham & Peckham, 1892) -- invalid
  Myrmarachne imbellis (Peckham & Peckham, 1892) -- invalid
  Myrmarachne marshalli Peckham & Peckham, 1903 -- valid
  Myrmarachne nemorensis (Peckham & Peckham, 1892) -- valid
  Myrmarachne providens (Peckham & Peckham, 1892) -- valid
  Myrmarachne robusta (Peckham & Peckham, 1892) -- valid
  Myrmarachne shelfordi Peckham & Peckham, 1907 -- invalid
  Myrmarachne solitaria Peckham & Peckham, 1903 -- valid
  Myrmarachne spissa (Peckham & Peckham, 1892) -- valid
  Myrmarachne volatilis (Peckham & Peckham, 1892) -- invalid
  Myrmavola volatilis (Peckham & Peckham, 1892) -- invalid
  Myrmele electrica (Peckham & Peckham, 1892) -- valid
  Nagaina Peckham & Peckham, 1896 -- valid
  Nagaina incunda Peckham & Peckham, 1896 -- valid
  Naphrys acerba (Peckham & Peckham, 1909) -- valid
  Nemadus browni Peck and Cook, 2007 -- valid
  Nemadus criddlei Peck and Cook, 2007 -- valid
  Nemadus falli Peck and Cook, 2007 -- valid
  Neoeocatops Peck and Cook, 2007 -- valid
  Neon nelli Peckham & Peckham, 1888 -- valid
  Nicrophorus hispaniola Sikes & Peck, 2000 -- valid
  Nigorella manica (Peckham & Peckham, 1903) -- valid
  Nilakantha Peckham & Peckham, 1901 -- valid
  Nilakantha cockerelli Peckham & Peckham, 1901 -- valid
  Nycerella aprica (Peckham & Peckham, 1896) -- valid
  Nycerella decorata (Peckham & Peckham, 1894) -- valid
  Nycerella delecta (Peckham & Peckham, 1896) -- valid
  Nycerella sanguinea (Peckham & Peckham, 1896) -- valid
  Nycerella sanguinea paradoxa (Peckham & Peckham, 1896) -- invalid
  Nycerella sanguinea sanguinea (Peckham & Peckham, 1896) -- invalid
  Ogdenia Peckham & Peckham, 1908 -- valid
  Ogdenia mutilla (Peckham & Peckham, 1907) -- valid
  Opisthoncus versimilis Peckham & Peckham, 1901 -- valid
  Pachomius Peckham & Peckham, 1896 -- valid
  Pachomius flavescens Peckham & Peckham, 1896 -- valid
  Pachomius similis Peckham & Peckham, 1896 -- valid
  Pachymerium pereirai Shear and Peck, 1992 -- valid
  Padilla Peckham & Peckham, 1894 -- valid
  Padilla armata Peckham & Peckham, 1894 -- valid
  Padilla cornuta (Peckham & Peckham, 1885) -- valid
  Paleacrita vernata (Peck, 1795) -- valid -- arpenteuse du printemps, spring cankerworm, Spring Cankerworm Moth
  Palpelius albofasciatus Peckham & Peckham, 1907 -- invalid
  Palpelius arboreus Peckham & Peckham, 1907 -- invalid
  Palpelius nemoralis Peckham & Peckham, 1907 -- invalid
  Pancorius animosus Peckham & Peckham, 1907 -- valid
  Pancorius fasciatus Peckham & Peckham, 1907 -- valid
  Pandisus modestus (Peckham, Peckham & Wheeler, 1889) -- valid
  Parabathippus sedatus (Peckham & Peckham, 1907) -- valid
  Parabathippus shelfordi (Peckham & Peckham, 1907) -- valid
  Paradamoetas Peckham & Peckham, 1885 -- valid
  Paradamoetas carus (Peckham & Peckham, 1892) -- valid
  Paradamoetas formicinus Peckham & Peckham, 1885 -- valid
  Parajotus Peckham & Peckham, 1903 -- valid
  Parajotus obscurofemoratus Peckham & Peckham, 1903 -- valid
  Paramaevia poultoni (Peckham & Peckham, 1901) -- valid
  Paramarpissa piratica (Peckham & Peckham, 1888) -- valid
  Paraphidippus fartilis (Peckham & Peckham, 1888) -- valid
  Paraphidippus luteus (Peckham & Peckham, 1896) -- valid
  Paraphidippus mexicanus (Peckham & Peckham, 1888) -- valid
  Pardirallus maculatus insolitus (Bangs & Peck, 1908) -- valid
  Parnaenus Peckham & Peckham, 1896 -- valid
  Peckhamia americana (Peckham & Peckham, 1892) -- valid
  Pectiniunguis krausi Shear and Peck, 1992 -- valid
  Pelegrina arizonensis (Peckham & Peckham, 1901) -- valid
  Pelegrina flavipes (Peckham & Peckham, 1888) -- valid
  Pelegrina pervaga (Peckham & Peckham, 1909) -- valid
  Pelegrina proxima (Peckham & Peckham, 1901) -- valid
  Pellenes beani Peckham & Peckham, 1903 -- valid
  Pellenes limatus Peckham & Peckham, 1901 -- valid
  Pellenes rufoclypeatus Peckham & Peckham, 1903 -- valid
  Pensacola Peckham & Peckham, 1885 -- valid
  Pensacola radians (Peckham & Peckham, 1896) -- valid
  Pensacola signata Peckham & Peckham, 1885 -- valid
  Pensacola sylvestris (Peckham & Peckham, 1896) -- valid
  Peprilus triacanthus (Peck, 1804) -- valid -- butterfish, palometa estrecha, stromatée à fossettes
  Phanias harfordi (Peckham & Peckham, 1888) -- valid
  Phiale flavescens (Peckham & Peckham, 1896) -- invalid
  Phiale similis (Peckham & Peckham, 1896) -- invalid
  Phidippus ardens Peckham & Peckham, 1901 -- valid
  Phidippus arizonensis (Peckham & Peckham, 1883) -- valid
  Phidippus californicus Peckham & Peckham, 1901 -- valid
  Phidippus carneus Peckham & Peckham, 1896 -- valid
  Phidippus carolinensis Peckham & Peckham, 1909 -- valid
  Phidippus comatus Peckham & Peckham, 1901 -- valid
  Phidippus georgii Peckham & Peckham, 1896 -- valid
  Phidippus johnsoni (Peckham & Peckham, 1883) -- valid -- Johnson jumper
  Phidippus octopunctatus (Peckham & Peckham, 1883) -- valid
  Phidippus princeps (Peckham & Peckham, 1883) -- valid
  Phidippus princeps princeps (Peckham & Peckham, 1883) -- valid
  Phidippus pruinosus Peckham & Peckham, 1909 -- valid
  Phidippus putnami (Peckham & Peckham, 1883) -- valid
  Phidippus tyrrelli Peckham & Peckham, 1901 -- valid
  Phidippus whitmani Peckham & Peckham, 1909 -- valid
  Phidippus workmani Peckham & Peckham, 1901 -- valid
  Philaeus ruber Peckham & Peckham, 1885 -- valid
  Phintella aequipes (Peckham & Peckham, 1903) -- valid
  Phintella aequipes aequipes (Peckham & Peckham, 1903) -- valid
  Phlegra imperiosa Peckham & Peckham, 1903 -- valid
  Pignus simoni (Peckham & Peckham, 1903) -- valid
  Pinodytes angulatus Peck and Cook, 2011 -- valid
  Pinodytes borealis Peck and Cook, 2011 -- valid
  Pinodytes chandleri Peck and Cook, 2011 -- valid
  Pinodytes colorado Peck and Cook, 2011 -- valid
  Pinodytes constrictus Peck and Cook, 2011 -- valid
  Pinodytes contortus Peck and Cook, 2011 -- valid
  Pinodytes delnorte Peck and Cook, 2011 -- valid
  Pinodytes eldorado Peck and Cook, 2011 -- valid
  Pinodytes fresno Peck and Cook, 2011 -- valid
  Pinodytes garibaldi Peck and Cook, 2011 -- valid
  Pinodytes gibbosus Peck and Cook, 2011 -- valid
  Pinodytes haidagwaii Peck and Cook, 2011 -- valid
  Pinodytes humboldtensis Peck and Cook, 2011 -- valid
  Pinodytes idaho Peck and Cook, 2011 -- valid
  Pinodytes isabella Peck and Cook, 2011 -- valid
  Pinodytes klamathensis Peck and Cook, 2011 -- valid
  Pinodytes losangeles Peck and Cook, 2011 -- valid
  Pinodytes marinensis Peck and Cook, 2011 -- valid
  Pinodytes minutus Peck and Cook, 2011 -- valid
  Pinodytes monterey Peck and Cook, 2011 -- valid
  Pinodytes newtoni Peck and Cook, 2011 -- valid
  Pinodytes orca Peck and Cook, 2011 -- valid
  Pinodytes parvus Peck and Cook, 2011 -- valid
  Pinodytes punctatus Peck and Cook, 2011 -- valid
  Pinodytes sanjacinto Peck and Cook, 2011 -- valid
  Pinodytes sequoia Peck and Cook, 2011 -- valid
  Pinodytes setosus Peck and Cook, 2011 -- valid
  Pinodytes shasta Peck and Cook, 2011 -- valid
  Pinodytes shoshone Peck and Cook, 2011 -- valid
  Pinodytes sinuatus Peck and Cook, 2011 -- valid
  Pinodytes spinus Peck and Cook, 2011 -- valid
  Pinodytes tehama Peck and Cook, 2011 -- valid
  Pinodytes tuolumne Peck and Cook, 2011 -- valid
  Pissodes strobi (Peck, 1817) -- valid
  Platycryptus californicus (Peckham & Peckham, 1888) -- valid
  Platycryptus magnus (Peckham & Peckham, 1894) -- valid
  Platyhydnobius Peck and Cook, 2009 -- valid
  Platyhydnobius andersoni Peck and Cook, 2009 -- valid
  Platyhydnobius bicolor Peck and Cook, 2009 -- valid
  Platyhydnobius calvario Peck and Cook, 2009 -- valid
  Platyhydnobius howdenorum Peck and Cook, 2009 -- valid
  Platyhydnobius latigra Peck and Cook, 2009 -- valid
  Platyhydnobius newtonorum Peck and Cook, 2009 -- valid
  Plexippus fannae (Peckham & Peckham, 1896) -- invalid
  Pochyta solers Peckham & Peckham, 1903 -- invalid
  Poronotus triacanthus (Peck, 1804) -- invalid
  Portia crassipalpis (Peckham & Peckham, 1907) -- valid
  Poultonella Peckham & Peckham, 1909 -- valid
  Poultonella alboimmaculata (Peckham & Peckham, 1883) -- valid
  Prionoxystus robiniae (Peck) -- valid -- carpenterworm, charpentier des bois tendres
  Pristobaeus albofasciatus (Peckham & Peckham, 1907) -- valid
  Pristobaeus arboreus (Peckham & Peckham, 1907) -- valid
  Pristobaeus nemoralis (Peckham & Peckham, 1907) -- valid
  Psecas barbaricus (Peckham & Peckham, 1894) -- valid
  Psecas chapoda (Peckham & Peckham, 1894) -- valid
  Pseudamycus amabilis Peckham & Peckham, 1907 -- valid
  Pseudamycus sylvestris Peckham & Peckham, 1907 -- valid
  Pseudanophthalmus illinoisensis Barr and Peck, 1966 -- valid -- Illinois cave beetle
  Pseudicius africanus Peckham & Peckham, 1903 -- valid
  Pseudicius bipunctatus Peckham & Peckham, 1903 -- invalid
  Pseudicius braunsi Peckham & Peckham, 1903 -- invalid
  Pseudicius marshi (Peckham & Peckham, 1903) -- valid
  Pseudicius oblongus Peckham & Peckham, 1894 -- valid
  Pseudicius siticulosus Peckham & Peckham, 1909 -- invalid
  Pseudicius unicus (Peckham & Peckham, 1894) -- invalid
  Ptocasius gratiosus Peckham & Peckham, 1907 -- valid
  Ptomaphagus acutus Peck and Gnaspini, 1997 -- valid
  Ptomaphagus alleghenyensis (Peck, 1979) -- valid
  Ptomaphagus altus (Peck, 1979) -- invalid
  Ptomaphagus appalachianus (Peck, 1979) -- valid
  Ptomaphagus barri Peck, 1973 -- valid
  Ptomaphagus bedfordensis (Peck, 1979) -- valid
  Ptomaphagus cavernicola aditus Peck, 1973 -- valid
  Ptomaphagus chihuahuensis (Peck, 1976) -- valid
  Ptomaphagus chromolithus Peck, 1984 -- valid
  Ptomaphagus cocytus Peck, 1973 -- valid
  Ptomaphagus cumberlandus (Peck, 1979) -- valid
  Ptomaphagus episcopus Peck, 1973 -- valid
  Ptomaphagus fiskei Peck, 1973 -- valid
  Ptomaphagus fumosus (Peck, 1979) -- valid
  Ptomaphagus geomysi Peck and Skelley, 2002 -- valid
  Ptomaphagus hazelae Peck, 1973 -- valid
  Ptomaphagus inyoensis Peck and Gnaspini, 1997 -- valid
  Ptomaphagus joanna (Peck, 1979) -- valid
  Ptomaphagus jonesi (Peck, 1979) -- valid
  Ptomaphagus julius Peck, 1973 -- valid
  Ptomaphagus lincolnensis Peck, 1978 -- valid
  Ptomaphagus loedingi julius Peck, 1973 -- invalid
  Ptomaphagus loedingi solanum Peck, 1973 -- invalid
  Ptomaphagus manzano Peck, 1978 -- valid
  Ptomaphagus nashvillensis (Peck, 1979) -- valid
  Ptomaphagus orichalcum (Peck, 1979) -- valid
  Ptomaphagus parashant Peck and Wynne, 2013 -- valid
  Ptomaphagus pisgahensis (Peck, 1979) -- valid
  Ptomaphagus richlandensis (Peck, 1979) -- valid
  Ptomaphagus scottsboroensis (Peck, 1979) -- valid
  Ptomaphagus solanum Peck, 1973 -- valid
  Ptomaphagus sonorensis (Peck, 1976) -- valid
  Ptomaphagus steevesi (Peck, 1979) -- valid
  Ptomaphagus suteri (Peck, 1979) -- valid
  Ptomaphagus torodei Peck, 1984 -- valid
  Ptomaphagus walteri Peck, 1973 -- valid
  Rhantus galapagoensis Balke and Peck, 1993 -- valid
  Rhene banksi Peckham & Peckham, 1902 -- valid
  Rhene biguttata Peckham & Peckham, 1903 -- valid
  Rhene callida Peckham & Peckham, 1895 -- valid
  Rhene callosa (Peckham & Peckham, 1895) -- valid
  Rhopalum rubrocinctum G. Peckham and E. Peckham, 1898 -- invalid
  Rhyacophila coloradensis idahoensis Peck & Smith, 1978 -- valid
  Rhyacophila jenniferae Peck in Peck & Smith, 1978 -- valid
  Rhynchaenus cerasi Peck, 1819 -- invalid
  Rudra Peckham & Peckham, 1885 -- valid
  Rudra geniculata Peckham & Peckham, 1885 -- valid
  Rudra polita Peckham & Peckham, 1894 -- valid
  Rudra tenera Peckham & Peckham, 1894 -- valid
  Saitis leighi Peckham & Peckham, 1903 -- invalid
  Saitis mundus Peckham & Peckham, 1903 -- invalid
  Sarinda Peckham & Peckham, 1892 -- valid
  Sarinda armata (Peckham & Peckham, 1892) -- valid
  Sarinda nigra Peckham & Peckham, 1892 -- valid
  Sassacus Peckham & Peckham, 1895 -- valid
  Sassacus barbipes (Peckham & Peckham, 1888) -- valid
  Sassacus papenhoei Peckham & Peckham, 1895 -- valid
  Sciodrepoides latinotum Peck and Cook, 2002 -- valid
  Scopocira vivida (Peckham & Peckham, 1901) -- invalid
  Selimus Peckham & Peckham, 1901 -- valid
  Selimus venustus Peckham & Peckham, 1901 -- valid
  Semora Peckham & Peckham, 1892 -- valid
  Semora napaea Peckham & Peckham, 1892 -- valid
  Sidusa Peckham & Peckham, 1895 -- valid
  Sidusa albopalpis (Peckham & Peckham, 1901) -- valid
  Sidusa flavens (Peckham & Peckham, 1896) -- valid
  Sidusa gratiosa Peckham & Peckham, 1895 -- valid
  Sidusa mandibularis (Peckham & Peckham, 1896) -- valid
  Sidusa recondita Peckham & Peckham, 1896 -- invalid
  Siloca viaria (Peckham & Peckham, 1901) -- invalid
  Sitticus cautus (Peckham & Peckham, 1888) -- valid
  Sitticus designatus (Peckham & Peckham, 1903) -- valid
  Sitticus floricola palustris (Peckham & Peckham, 1883) -- invalid
  Sitticus ranieri (Peckham & Peckham, 1909) -- invalid
  Sitticus uphami (Peckham & Peckham, 1903) -- invalid
  Sittisax ranieri (Peckham & Peckham, 1909) -- valid
  Sogda enigma Peck and Cook, 2009 -- valid
  Sonoita Peckham & Peckham, 1903 -- valid
  Sonoita lightfooti Peckham & Peckham, 1903 -- valid
  Spadera Peckham & Peckham, 1894 -- valid
  Spadera unica Peckham & Peckham, 1894 -- valid
  Speleoperipatus Peck, 1975 -- valid
  Speleoperipatus spelaeus Peck, 1975 -- valid
  Stereus arenarius Peck and Cook, 2009 -- valid
  Stoidis pygmaea (Peckham & Peckham, 1894) -- valid
  Synemosyna americana (Peckham & Peckham, 1885) -- valid
  Synemosyna hentzi Peckham & Peckham, 1892 -- valid
  Synemosyna lauretta Peckham & Peckham, 1892 -- valid
  Synemosyna smithi Peckham & Peckham, 1894 -- valid
  Tacuna Peckham & Peckham, 1901 -- valid
  Tacuna delecta Peckham & Peckham, 1901 -- valid
  Tacuna vaga (Peckham & Peckham, 1895) -- valid
  Taivala Peckham & Peckham, 1907 -- valid
  Taivala invisitata Peckham & Peckham, 1907 -- valid
  Talavera Peckham & Peckham, 1909 -- valid
  Tara Peckham & Peckham, 1886 -- valid
  Telamonia annulipes Peckham & Peckham, 1907 -- valid
  Telamonia cristata Peckham & Peckham, 1907 -- valid
  Telamonia resplendens Peckham & Peckham, 1907 -- valid
  Terralonus californicus (Peckham & Peckham, 1888) -- valid
  Terralonus versicolor (Peckham & Peckham, 1909) -- valid
  Theridion strepitus Peck & Shear, 1987 -- valid
  Thiodina cockerelli (Peckham & Peckham, 1901) -- invalid
  Thyene aperta (Peckham & Peckham, 1903) -- valid
  Thyene australis Peckham & Peckham, 1903 -- valid
  Thyene leighi Peckham & Peckham, 1903 -- valid
  Thyene natalii Peckham & Peckham, 1903 -- valid
  Thyene ogdeni Peckham & Peckham, 1903 -- valid
  Thyene ogdeni leighi Peckham & Peckham, 1903 -- invalid
  Thyene ogdeni ogdeni Peckham & Peckham, 1903 -- valid
  Thyene pulchra Peckham & Peckham, 1903 -- invalid
  Thyene varians Peckham & Peckham, 1901 -- valid
  Thyenula leighi (Peckham & Peckham, 1903) -- valid
  Thyenula munda (Peckham & Peckham, 1903) -- valid
  Titanattus Peckham & Peckham, 1885 -- valid
  Titanattus saevus Peckham & Peckham, 1885 -- valid
  Tulpius Peckham & Peckham, 1896 -- valid
  Tulpius hilarus Peckham & Peckham, 1896 -- valid
  Tusitala Peckham & Peckham, 1902 -- valid
  Tusitala barbata Peckham & Peckham, 1902 -- valid
  Tusitala barbata barbata Peckham & Peckham, 1902 -- invalid
  Tusitala hirsuta Peckham & Peckham, 1902 -- valid
  Tutelina harti (Peckham, 1891) -- invalid
  Usazoros Kukalova-Peck and Peck, 1993 -- invalid
  Vailimia masinei (Peckham & Peckham, 1907) -- valid
  Veissella durbani (Peckham & Peckham, 1903) -- valid
  Viciria alba Peckham & Peckham, 1903 -- invalid
  Viciria arrogans Peckham & Peckham, 1907 -- valid
  Viciria concolor Peckham & Peckham, 1907 -- valid
  Viciria flavipes Peckham & Peckham, 1903 -- valid
  Viciria lucida Peckham & Peckham, 1907 -- valid
  Viciria miranda Peckham & Peckham, 1907 -- valid
  Viciria moesta Peckham & Peckham, 1907 -- valid
  Viciria paludosa Peckham & Peckham, 1907 -- valid
  Viciria petulans Peckham & Peckham, 1907 -- valid
  Viroqua Peckham & Peckham, 1901 -- valid
  Wallaba albopalpis (Peckham & Peckham, 1901) -- invalid
  Xanthofreya rustica (Peckham & Peckham, 1896) -- valid
  Zenodorus Peckham & Peckham, 1886 -- valid
  Zenodorus arcipluvii (Peckham & Peckham, 1901) -- valid
  Zoarces anguillaris (Peck, 1804) -- invalid -- eelpout, eelpout, mutton fish, mutton fish, shore eelpout, shore eelpout
  Zuniga Peckham & Peckham, 1892 -- valid
  Zuniga laeta (Peckham & Peckham, 1892) -- valid
  Zuniga magna Peckham & Peckham, 1892 -- valid
  Zygoballus Peckham & Peckham, 1885 -- valid
  Zygoballus minutus Peckham & Peckham, 1896 -- valid
  Zygoballus nervosus (Peckham & Peckham, 1888) -- valid
  Zygoballus remotus Peckham & Peckham, 1896 -- valid
  Zygoballus rufipes Peckham & Peckham, 1885 -- valid -- hammerjawed jumper
  Zygoballus suavis Peckham & Peckham, 1895 -- valid
 
 Kingdom Fungi
  Diachea splendens Peck -- accepted
  Massospora C. H. Peck, 1879 -- accepted
  Massospora cicadina C. H. Peck -- accepted
  Physarella C. H. Peck, 1882 -- accepted
  Physarella mirabilis C. H. Peck -- accepted
 
 Kingdom Plantae
  Achillea lanulosa var. eradiata (Piper) M. Peck -- not accepted
  Allium cascadense M. Peck -- not accepted
  Amelanchier florida var. cusickii (Fernald) M. Peck -- not accepted
  Amelanchier florida var. gracilis (A. Heller) M. Peck -- not accepted
  Anemone felix M. Peck -- not accepted
  Anemone oregana var. felix (M. Peck) C.L. Hitchc. -- accepted -- bog anemone, Felix anemone
  Antennaria dimorpha var. latisquama (Piper) M. Peck -- not accepted
  Antennaria luzuloides var. oblanceolata (Rydb.) M. Peck -- not accepted
  Aquilegia formosa var. flavescens (S. Watson) M. Peck -- not accepted
  Arceuthobium pusillum Peck -- accepted -- eastern dwarf mistletoe
  Arctostaphylos hispidula var. viscosissima M. Peck -- not accepted
  Arctostaphylos viscosissima M. Peck -- not accepted
  Arenaria aculeata var. uintahensis (A. Nelson) M. Peck -- not accepted
  Arenaria franklinii var. thompsonii M. Peck -- not accepted -- Thompson's sandwort
  Arenaria stricta var. puberulenta (M. Peck) C.L. Hitchc. -- not accepted
  Arisaema pusillum (Peck) Nash -- not accepted
  Arisaema triphyllum ssp. pusillum (Peck) Huttl. -- not accepted -- Jack in the pulpit
  Artemisia campestris ssp. borealis var. borealis (Pall.) M. Peck -- not accepted -- field sagewort
  Artemisia campestris var. borealis (Pall.) M. Peck -- not accepted -- field sagewort
  Artemisia campestris var. pacifica (Nutt.) M. Peck -- not accepted
  Asarum caudatum var. viridiflorum M. Peck -- not accepted -- longtail wildginger
  Asplenium platyneuron var. incisum (Howe ex Peck) B.L. Rob. -- not accepted -- ebony spleenwort
  Aster alpigenus var. andersonii (A. Gray) Onno ex M. Peck -- not accepted
  Aster attenuatus (Howell) M. Peck non Lindl. ex Hook. -- not accepted
  Aster covillei (Greene) S.F. Blake ex M. Peck -- not accepted
  Astragalus alpinus var. alpiniformis (Rydb.) M. Peck -- not accepted
  Astragalus applegatei M. Peck -- accepted -- Applegate's milk-vetch, Applegate's milkvetch
  Astragalus conjunctus var. sheldonii (Rydb.) M. Peck -- not accepted
  Astragalus diaphanus var. diurnus (S. Watson) Barneby ex M. Peck -- not accepted
  Astragalus forwoodii var. wallowensis (Rydb.) M. Peck -- not accepted
  Astragalus jessiae M. Peck -- not accepted
  Astragalus kentrophyta ssp. jessiae (M. Peck) W.A. Weber -- not accepted
  Astragalus kentrophyta var. jessiae (M. Peck) Barneby -- accepted -- spiny milkvetch
  Astragalus lagopinus (Rydb.) M. Peck -- not accepted
  Astragalus laurentii (Rydb.) M. Peck -- not accepted
  Astragalus lentiginosus var. platyphyllidius (Rydb.) M. Peck -- accepted -- broad-leaved milkvetch
  Astragalus solitarius M. Peck -- accepted -- solitary milkvetch, weak milk-vetch
  Astragalus spaldingii var. tyghensis (M. Peck) C.L. Hitchc. -- not accepted
  Astragalus subglaber (Rydb.) M. Peck -- not accepted
  Astragalus tyghensis M. Peck -- accepted -- Tygh Valley milkvetch
  Atriplex patula var. obtusa (Cham.) M. Peck -- not accepted
  Bolandra oregana var. imnahaensis (M. Peck) M. Peck -- not accepted
  Brodiaea dissimulata M. Peck -- not accepted
  Brodiaea douglasii var. howellii (S. Watson) M. Peck -- not accepted
  Brodiaea hendersonii var. galeae M. Peck -- not accepted
  Brodiaea leachiae M. Peck -- not accepted
  Brodiaea scabra var. analina (Greene) M.E. Peck -- not accepted
  Calochortus indecorus Ownbey & M. Peck -- accepted -- Sexton Mountain mariposa lily
  Campanula rotundifolia var. sacajaweana (M. Peck) ined. -- not accepted
  Campanula sacajaweana M. Peck -- not accepted
  Camptothecium nitens var. falcatum Peck -- not accepted
  Carex flava var. fertilis Peck -- not accepted
  Carex flava var. fertilis auct. non Peck -- not accepted
  Carex pensylvanica var. distans Peck -- not accepted
  Carex pensylvanica var. glumabunda Peck -- not accepted
  Carex pensylvanica var. separans Peck -- not accepted
  Carex radiata var. staminata Peck ex Howe -- not accepted
  Carex rosea var. pusilla Peck & Howe -- not accepted
  Cercocarpus ledifolius var. hypoleucus (Rydb.) M. Peck -- not accepted
  Cirsium wallowense M. Peck -- not accepted
  Clarkia amoena var. pacifica (M. Peck) C.L. Hitchc. -- not accepted
  Corallorhiza maculata var. flavida (M. Peck) Cockerell -- not accepted
  Corallorhiza maculata var. immaculata M. Peck -- not accepted
  Corallorrhiza maculata var. flavida (M. Peck) Cockerell -- not accepted
  Corallorrhiza maculata var. immaculata M. Peck -- not accepted
  Cordylanthus viscidus (Howell) Pennell ex M. Peck -- not accepted
  Corydalis aquae-gelidae M. Peck & W.C. Wilson -- accepted -- coldwater fumewort
  Corydalis caseana ssp. aquae-gelidae (M. Peck & W.C. Wilson) Zetterl. & Lidén -- not accepted -- coldwater fumewort
  Crataegus X brevipes Peck (pro sp.) -- accepted -- hawthorn
  Crepis runcinata var. imbricata (Babc. & Stebbins) M. Peck -- not accepted
  Cryptantha fragilis M. Peck -- not accepted
  Danthonia spicata var. villosa Peck -- not accepted
  Descurainia pinnata var. filipes (A. Gray) M. Peck -- not accepted
  Descurainia pinnata var. halictorum (Cockerell) M. Peck -- not accepted
  Descurainia pinnata var. nelsonii (Rydb.) M. Peck -- not accepted
  Descurainia pinnata var. paradisa (A. Nelson & P.B. Kenn.) M. Peck -- not accepted
  Descurainia richardsonii var. viscosa (Rydb.) M. Peck -- not accepted
  Dicentra cucullaria var. occidentalis (Rydb.) M. Peck -- not accepted
  Downingia pulcherrima M. Peck -- not accepted
  Downingia willamettensis M. Peck -- not accepted
  Dryopteris X mickelii J.H. Peck -- accepted
  Epilobium adenocaulon var. cinerascens (Piper) M. Peck -- not accepted
  Epilobium paniculatum var. hammondii (Howell) M. Peck -- not accepted
  Eremogone franklinii var. thompsonii (M. Peck) R.L. Hartm. & Rabeler -- accepted -- Thompson's sandwort
  Erigeron filifolius var. robustior M. Peck -- not accepted -- threadleaf fleabane
  Eriogonum novonudum M. Peck -- accepted -- false naked buckwheat
  Eriogonum ochrocephalum var. calcareum (S. Stokes) M. Peck -- accepted -- whitewoolly buckwheat
  Eriogonum ovalifolium ssp. chrysops (Rydb.) S. Stokes ex M. Peck -- not accepted
  Eriogonum ovalifolium var. ochroleucum (Small ex Rydb.) M. Peck -- accepted -- cushion buckwheat
  Eriogonum pyrolifolium var. bellingerianum M. Peck -- not accepted
  Euphorbia gilbertiana Bisseret & Specks -- accepted
  Euphorbia marie-cladieae Rzepecky -- accepted
  Euphorbia umfoloziensis Peckover -- accepted
  Frasera umpquaensis M. Peck & Applegate -- not accepted -- Umpqua green-gentian
  Fritillaria adamantina M. Peck -- not accepted -- Diamond Lake mission-bells
  Gentiana sceptrum var. cascadensis M. Peck -- not accepted
  Geum gracilipes (Piper) M. Peck -- not accepted
  Godetia pacifica M. Peck -- not accepted
  Haplopappus carthamoides var. rigidus (Rydb.) M. Peck -- not accepted
  Haplopappus hirtus var. lanulosus (Greene) M. Peck -- not accepted
  Haplopappus hirtus var. sonchifolius (Greene) M. Peck -- not accepted
  Haplopappus lanulosus (Greene) M. Peck -- not accepted
  Haplopappus uniflorus var. howellii (A. Gray) M. Peck -- not accepted
  Hieracium siskiyouense M. Peck -- not accepted
  Horkelia congesta var. nemorosa (D.D. Keck) M. Peck -- accepted -- Sierra horkelia
  Horkelia fusca var. capitata (Lindl.) M. Peck -- accepted
  Horkelia fusca var. filicoides (Crum) M. Peck -- accepted -- pinewoods horkelia
  Horkelia fusca var. pseudocapitata (Rydb. ex Howell) M. Peck -- accepted
  Hudsonia ericoides ssp. intermedia (Peck) N.H. Nick. & J.E. Skog -- not accepted
  Hudsonia intermedia (Peck) Erskine (pro. hybr.) -- not accepted
  Hudsonia tomentosa var. intermedia Peck -- not accepted -- sand goldenheather
  Hydrophyllum capitatum var. thompsonii (M. Peck) Constance -- accepted -- Thompson's waterleaf
  Juncus saximontanus var. robustior M. Peck -- not accepted
  Lathyrus nevadensis ssp. lanceolatus var. pilosellus (M. Peck) C.L. Hitchc. -- not accepted -- Sierra pea
  Lathyrus nevadensis var. pilosellus (M. Peck) C.L. Hitchc. -- not accepted -- Sierra pea
  Leptodactylon hazeliae M. Peck -- not accepted
  Leptodactylon pungens ssp. hazeliae (M. Peck) R.J. Meinke -- not accepted
  Lesquerella kingii var. sherwoodii (M. Peck) C.L. Hitchc. -- not accepted
  Lesquerella sherwoodii M. Peck -- not accepted
  Limnanthes bellingeriana M. Peck -- not accepted
  Limnanthes floccosa ssp. bellingeriana (M. Peck) Arroyo -- accepted -- Bellinger's meadowfoam, woolly meadowfoam
  Limnanthes floccosa var. bellingeriana (M. Peck) C.T. Mason -- not accepted
  Lithophragma heterophyllum var. campanulatum (Howell) M. Peck -- not accepted
  Lycopodium clavatum var. brevispicatum Peck -- not accepted
  Melica bulbosa var. intonsa (Piper) M. Peck -- not accepted
  Mentzelia mollis M. Peck -- accepted -- smooth blazingstar, smooth stickleaf, soft blazingstar
  Menziesia ferruginea var. glabella (A. Gray) M. Peck -- not accepted
  Mimulus caespitosus var. implexus (Greene) M. Peck -- not accepted
  Mimulus guttatus var. laxus (Pennell) M. Peck -- not accepted
  Mimulus primuloides var. minimus M. Peck -- not accepted
  Myosurus clavicaulis M. Peck -- not accepted
  Myosurus minimus ssp. major var. clavicaulis (M. Peck) G.R. Campb. -- not accepted -- tiny mousetail
  Myosurus minimus var. clavicaulis (M. Peck) G.R. Campb. -- not accepted
  Myosurus minumus var. clavicaulis (M. Peck) G.R. Campb. -- not accepted
  Oxalis oregana var. smallii (R. Knuth) M. Peck -- not accepted
  Panicum deminutivum Peck -- not accepted
  Pedicularis centranthera var. exulans M. Peck -- not accepted
  Penstemon hesperius M. Peck -- not accepted
  Phacelia eremophila var. valida M. Peck -- not accepted
  Phacelia ramosissima var. subglabra M. Peck -- accepted -- branching phacelia
  Phacelia ramosissima var. valida M. Peck -- not accepted
  Phlox diffusa var. longistylis (Wherry) M. Peck -- not accepted
  Phlox hoodii var. canescens (Torr. & A. Gray) M. Peck -- not accepted
  Phlox longifolia var. longipes (M.E. Jones) M. Peck -- not accepted
  Phlox speciosa var. occidentalis (Durand ex Torr.) M. Peck -- not accepted
  Picea mariana var. semiprostrata (Peck) Teeri -- not accepted -- black spruce
  Plagiobothrys distantiflorus (Piper) I.M. Johnst. ex M. Peck -- accepted -- California popcornflower
  Plagiobothrys figuratus (Piper) I.M. Johnst. ex M. Peck -- accepted -- fragrant popcornflower
  Plagiobothrys figuratus ssp. figuratus (Piper) I.M. Johnst. ex M. Peck -- not accepted -- fragrant popcornflower
  Plagiobothrys figuratus var. figuratus (Piper) I.M. Johnst. ex M. Peck -- accepted -- fragrant popcornflower
  Polygonum heterosepalum M. Peck & Ownbey -- accepted -- oddsepal knotweed
  Potamogeton epihydrus var. ramosus (Peck) House -- not accepted
  Potentilla anomalifolia M. Peck -- not accepted
  Potentilla anomalofolia M. Peck -- not accepted
  Potentilla indiges M. Peck -- not accepted
  Prunus subcordata var. oregana (Greene) M. Peck -- not accepted -- Oregon Klamath plum
  Razoumofskya pusilla (Peck) Kuntze -- not accepted
  Ribes divaricatum var. rigidum M. Peck -- not accepted
  Ribes gooddingii M. Peck -- not accepted
  Ribes goodingii M. Peck -- not accepted
  Ribes inerme var. subarmatum M. Peck -- not accepted
  Ribes velutinum var. gooddingii (M. Peck) C.L. Hitchc. -- not accepted -- Gooding's gooseberry
  Rorippa curvisiliqua var. lyrata (Nutt.) M. Peck ex C.L. Hitchc. -- not accepted -- lyrateleaf yellowcress
  Rubus bartonianus M. Peck -- accepted -- Barton's raspberry
  Rubus hispidus var. suberectus Peck -- not accepted
  Rubus neglectus Peck -- not accepted
  Rubus X neglectus Peck (pro sp.) -- accepted
  Rumex mexicanus var. strictus M. Peck -- not accepted
  Salvia carnosa var. gracilior M. Peck -- not accepted
  Saxifraga bronchialis var. austromontana (Wiegand) M. Peck -- not accepted
  Saxifraga occidentalis var. aequidentata (Small) M. Peck -- not accepted
  Saxifraga occidentalis var. wallowensis M. Peck -- not accepted
  Scirpus microcarpus var. longispicatus M. Peck -- not accepted
  Scorzonella leachiana M. Peck -- not accepted
  Scorzonella nutans var. major (A. Gray) M. Peck -- not accepted
  Sedum glanduliferum (L. Henderson) M. Peck -- not accepted
  Sedum heckneri M. Peck -- not accepted
  Sedum laxum ssp. heckneri (M. Peck) R.T. Clausen -- not accepted -- Heckner's stonecrop
  Sedum laxum var. heckneri (M. Peck) H. Ohba -- accepted -- Heckner's stonecrop
  Sedum oregonense (S. Watson) M. Peck -- accepted -- cream stonecrop
  Senecio cymbalarioides var. suksdorfii (Greenm.) M. Peck -- not accepted
  Setaria viridis var. purpurascens Peck ex Dudley -- not accepted
  Sidalcea maxima M. Peck -- not accepted
  Sidalcea oregana ssp. oregana var. maxima (M. Peck) C.L. Hitchc. -- not accepted
  Sidalcea oregana var. maxima (M. Peck) C.L. Hitchc. -- not accepted -- Oregon checkerbloom
  Sidalcea spicata var. tonsa M. Peck -- not accepted
  Silene douglasii var. oraria (M. Peck) C.L. Hitchc. & Maguire -- accepted -- Cascade Head catchfly, seabluff catchfly
  Silene hookeri ssp. pulverulenta (M. Peck) C.L. Hitchc. & Maguire -- not accepted -- Hooker's silene
  Silene oraria M. Peck -- not accepted
  Silene pulverulenta M. Peck -- not accepted
  Solidago canadensis var. elongata (Nutt.) M. Peck -- not accepted
  Sophora leachiana M. Peck -- accepted -- western necklacepod
  Stylocline psilocarphoides M. Peck -- accepted -- baretwig neststraw
  Swertia umpquaensis (M. Peck & Applegate) H. St. John -- not accepted
  Taraxacum paucisquamosum M. Peck -- not accepted
  Thalictrum occidentale var. columbianum (Rydb.) M. Peck -- not accepted
  Thelypodium howellii ssp. spectabilis (M. Peck) Al-Shehbaz -- accepted -- Howell's spectacular thelypody, Howell's thelypody
  Thelypodium howellii var. spectabilis M. Peck -- not accepted
  Triteleia hendersonii var. leachiae (M. Peck) Hoover -- not accepted -- Leach's triteleia
  Veronica sherwoodii M. Peck -- not accepted
  Vexibia leachiana (M. Peck) W.A. Weber -- not accepted
  Viola praemorsa ssp. linguifolia (Nutt.) M.S. Baker & J.C. Clausen ex M. Peck -- not accepted -- upland yellow violet
  Viola praemorsa ssp. major (Hook.) M.S. Baker ex M. Peck -- not accepted
  Viola praemorsa var. linguifolia (Nutt.) M. Peck -- accepted -- upland yellow violet
  Viola praemorsa var. major (Hook.) M. Peck -- not accepted
  Viola purpurea ssp. atriplicifolia (Greene) M.S. Baker & J.C. Clausen ex M. Peck -- not accepted
  Viola purpurea var. atriplicifolia (Greene) M. Peck -- not accepted
  Xanthium strumarium var. oviforme (Wallr.) M. Peck -- not accepted
  Xanthium strumarium var. pensylvanicum (Wallr.) M. Peck -- not accepted
  Xanthium strumarium var. wootonii (Cockerell) M. Peck -- not accepted
  Zigadenus venenosus var. gramineus (Rydb.) Walsh ex M. Peck -- not accepted -- deathcamas, grassy deathcamas
   

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