| Name | Agaricus stupparius Berkeley & M. A. Curtis | 
| Authorship | Berkeley & M. A. Curtis | 
| Rank | Species | 
| Placed in | Agaricus | 
| Citation | 1868 ["1869"] J. Linn. Soc., Bot. 10(no. 45): 285 | 
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Agaricus stupparius Berkeley & M. A. Curtis | 
| Identification made in | [no date] (2) |