- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:113109-2
- Publication
- Contributions from the United States National Herbarium. Smithsonian Institution
- Collation
- 38: 110
- Family as entered in IPNI
- Grammitidaceae
Links
- Nomenclatural link
- Polypodium firmum Klotzsch
- Nomenclatural link
- Ctenopteris firma J.Sm.
- Same citation as
- Grammitis firma (J.Sm.) C.V.Morton, Contr. U.S. Natl. Herb. 38: 110 (1967).