| Name | Symphyogyna crassifrons Sullivant |
| Authorship | Sullivant |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Symphyogyna |
| Citation | 1850 Hooker's J. Bot. Kew Gard. Misc. 2: 317 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Symphyogyna crassifrons Sullivant |
| Identification made in | [no date] (1), 1850 (1) |