| Name | Collybia avellaneigrisea (Murrill) Murrill |
| Authorship | (Murrill) Murrill |
| Rank | Species |
| Placed in | Collybia |
| GUID | urn:lsid:indexfungorum.org:names:175467 |
| Citation | 1916 Mycologia 8(4): 218 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Collybia avellaneigrisea (Murrill) Murrill |
| Identification made in | [no date] (1) |