| Name | Erysiphe fischeri S. Blumer |
| Authorship | S. Blumer |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Erysiphe R. Hedwig ex de Candolle: Fries |
| Citation | 1933 Beitr. Kryptogamenfl. Schweiz 7(1): 262 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Erysiphe fischeri S. Blumer |
| Identification made in | [no date] (1), 1984 (1) |
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