| Name | Agaricus sordescens Berkeley & M. A. Curtis |
| Authorship | Berkeley & M. A. Curtis |
| Rank | Species |
| Placed in | Agaricus |
| Citation | 1868 ["1869"] J. Linn. Soc., Bot. 10(no. 45): 283 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Agaricus sordescens Berkeley & M. A. Curtis |
| Identification made in | [no date] (1) |