| Name | Collybia umbonata Peck |
| Authorship | Peck |
| Rank | Species |
| Placed in | Collybia |
| GUID | urn:lsid:indexfungorum.org:names:147077 |
| Citation | 1904 Bull. Torrey Bot. Club 31: 178 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Collybia umbonata Peck |
| Identification made in | [no date] (2) |
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