Tema
- Specific Epithet: fuscum 4
- Specific Epithet: girgensohnii 4
- Specific Epithet: hallii 4
- Specific Epithet: imbricatum 4
- Specific Epithet: latebricola 4
- Specific Epithet: marylandicum 4
- Specific Epithet: multifida 4
- Specific Epithet: nemorosa 4
- Specific Epithet: nigritum 4
- Specific Epithet: obconica 4
- Specific Epithet: papillosa 4
- Specific Epithet: pennata 4
- Specific Epithet: polypodioides 4
- Specific Epithet: procera 4
- Specific Epithet: pygmaeum 4
- Specific Epithet: recognitum 4
- Specific Epithet: reflexum 4
- Specific Epithet: rugelii 4
- Specific Epithet: rugifolia 4
- Specific Epithet: ruralis 4