| Name | Erysiphe bicornis (Wallroth) Fries: Fries |
| Authorship | (Wallroth) Fries: Fries |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Erysiphe R. Hedwig ex de Candolle: Fries |
| Citation | 1829 Syst. Mycol. 3(1): 244 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Erysiphe bicornis (Wallroth) Fries: Fries |
| Identification made in | [no date] (6) |