| Name | Erysiphe hyperici (Wallroth) S. Blumer |
| Authorship | (Wallroth) S. Blumer |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Erysiphe R. Hedwig ex de Candolle: Fries |
| Citation | 1933 Beitr. Kryptogamenfl. Schweiz 7(1): 206 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Erysiphe hyperici (Wallroth) S. Blumer |
| Identification made in | [no date] (2) |