Subject
- Specific Epithet: giganteum 1
- Specific Epithet: girgensohnii 4
- Specific Epithet: glaucescens 3
- Specific Epithet: glaucum 12
- Specific Epithet: glomerata 2
- Specific Epithet: gracilescens 22
- Specific Epithet: gracilicaulis 1
- Specific Epithet: gracillima 1
- Specific Epithet: graminicolor 15
- Specific Epithet: grandifrons 3
- Specific Epithet: graveolens 2
- Specific Epithet: haldanianum 22
- Specific Epithet: hallii 4
- Specific Epithet: hellerianum 1
- Specific Epithet: hemisphaerica 7
- Specific Epithet: heteromalla 25
- Specific Epithet: heterophylla 18
- Specific Epithet: heterostichum 9
- Specific Epithet: hians 12
- Specific Epithet: hibernica 2