| Name | Psathyrella umbonata (Peck) A. H. Smith |
| Authorship | (Peck) A. H. Smith |
| Rank | Species |
| Placed in | Psathyrella |
| GUID | urn:lsid:indexfungorum.org:names:321441 |
| Citation | 1972 Mem. New York Bot. Gard. 24: 296 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Psathyrella umbonata (Peck) A. H. Smith |
| Identification made in | [no date] (1) |
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