| Name | Nephrodium marginale f. davenportii Floyd |
| Authorship | Floyd bis |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Nephrodium marginale Richard |
| GUID | urn:lsid:ipni.org:names:169375-2 |
| Citation | 1902 Rhodora 4: 245 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Nephrodium marginale f. davenportii Floyd |
| Identification made in | [no date] (1), 1947 (1), 2012 (4) |