| Name | Agaricus atrocoeruleus var. canovianus Saccardo |
| Authorship | Saccardo |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Agaricus atrocoeruleus Fries: Fries |
| Citation | 1879 Mycoth. Veneta Cent. 14: no. 1392 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Agaricus atrocoeruleus var. canovianus Saccardo |
| Identification made in | [no date] (1) |