| Name | Agaricus applicatus var. atratus Saccardo |
| Authorship | Saccardo |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Agaricus applicatus Batsch |
| Citation | 1879 Michelia 1(5): 539 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Agaricus applicatus var. atratus Saccardo |
| Identification made in | [no date] (1) |