External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:35327-2
- Publication
- American Fern Journal; a quarterly devoted to ferns.
- Collation
- 25: 118
- Family as entered in IPNI
- Ophioglossaceae
Type Information
- Distribution Of Types
- Pennsylvania (Northeastern U.S.A., Northern America)