学科
- Specific Epithet: acuminatum 1
- Specific Epithet: alternifolium 1
- Specific Epithet: americanum 1
- Specific Epithet: attenuatus 1
- Specific Epithet: cladorrhizans 1
- Specific Epithet: cristatus 1
- Specific Epithet: curvifolium 1
- Specific Epithet: dalecarlica 1
- Specific Epithet: filicinum 1
- Specific Epithet: hygrometrica 1
- Specific Epithet: leana 1
- Specific Epithet: mougeotii 1
- Specific Epithet: ohioense 1
- Specific Epithet: oxycladon 1
- Specific Epithet: pallidum 1
- Specific Epithet: pellucidum 1
- Specific Epithet: pseudotriquetrum 1
- Specific Epithet: rigidulus 1
- Specific Epithet: rostratus 1
- Specific Epithet: rugosum 1