| |
| Kingdom Plantae |
| |
Anthoceros carolinianus var. occidentalis M. Howe – not accepted
|
| |
Anthoceros macounii M. Howe – accepted – Macoun's anthoceros
|
| |
Anthoceros pearsoni M. Howe – not accepted
|
| |
Anthoceros pearsonii M. Howe – not accepted
|
| |
Anthoceros phymatodes M. Howe – not accepted
|
| |
Anthoceros simulans M. Howe – accepted
|
| |
Asterella lateralis M. Howe – accepted
|
| |
Blepharostoma arachnoideum M. Howe – accepted
|
| |
Clevea hyalina var. californica M. Howe – accepted
|
| |
Fissidens pauperculus M. Howe – accepted
|
| |
Frullania franciscana M. Howe – accepted
|
| |
Gracilaria vivesii M. Howe – not accepted
|
| |
Gyrothyra M. Howe – accepted
|
| |
Gyrothyra underwoodiana M. Howe – accepted
|
| |
Hedwigia albicans var. detonsa M. Howe – not accepted
|
| |
Notothylas galapagensis M. Howe – accepted
|
| |
Oxymitra androgyna M. Howe – not accepted
|
| |
Riccia brittonii M. Howe – accepted
|
| |
Riccia campbelliana M. Howe – accepted
|
| |
Riccia dictyospora M. Howe – accepted
|
| |
Riccia howellii M. Howe – accepted
|
| |
Riccia iodocheila M. Howe – accepted
|
| |
Riccia macallisteri M. Howe – accepted
|
| |
Riccia trichocarpa M. Howe – not accepted
|
| |
Riccia violacea M. Howe – accepted
|
| |
Riccia violacea var. violacea M. Howe – accepted
|
| |
Scapania heterophylla M. Howe – not accepted
|
| |
Sphaerocarpos cristatus M. Howe – accepted |
| |
|
