| Name | Hygrocybe firma (Berkeley & Broome) Singer |
| Authorship | (Berkeley & Broome) Singer |
| Rank | Species |
| Placed in | Hygrocybe |
| GUID | urn:lsid:indexfungorum.org:names:298659 |
| Citation | 1958 ["1957"] Sydowia 11(1-6): 355 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Hygrocybe firma (Berkeley & Broome) Singer |
| Identification made in | [no date] (2) |