| Name | Agaricus micromegethus Peck |
| Authorship | Peck |
| Rank | Species |
| Placed in | Agaricus |
| GUID | urn:lsid:indexfungorum.org:names:144541 |
| Citation | 1905 Bull. New York State Mus. Nat. Hist. 94: 36 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Agaricus micromegethus Peck |
| Identification made in | [no date] (2) |