| Name | Coprinus semilanatus Peck |
| Authorship | Peck |
| Rank | Species |
| Placed in | Coprinus |
| GUID | urn:lsid:indexfungorum.org:names:156727 |
| Citation | 1872 ["1871"] Rep. (Annual) New York State Mus. Nat. Hist. 24: 71 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Coprinus semilanatus Peck |
| Identification made in | [no date] (3) |