Subject
- Genus: Pallavicinia4
- Genus: Physcomitrium4
- Genus: Plagiochila4
- Genus: Riccardia4
- Specific Epithet: adnatum 4
- Specific Epithet: apiculatum 4
- Specific Epithet: conicum 4
- Specific Epithet: crassinervium 4
- Specific Epithet: cumberlandianum 4
- Specific Epithet: curvifolia 4
- Specific Epithet: cuspidatum 4
- Specific Epithet: fimbriatum 4
- Specific Epithet: heterostichum 4
- Specific Epithet: humilis 4
- Specific Epithet: lyellii 4
- Specific Epithet: microphyllum 4
- Specific Epithet: mougeotii 4
- Specific Epithet: nutans 4
- Specific Epithet: pallescens 4
- Specific Epithet: pennsylvanica 4