| Name | Hymenophyllum formosum Brackenridge |
| Authorship | Brackenridge |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Hymenophyllum Smith |
| GUID | urn:lsid:ipni.org:names:17123040-1 |
| Citation | 1854 U.S. Expl. Exped., Filic. 16: 268 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Hymenophyllum formosum Brackenridge |
| Identification made in | [no date] (1), 1927 (1) |