| Name | Erysiphe orbicularis Ehrenberg |
| Authorship | Ehrenberg |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Erysiphe R. Hedwig ex de Candolle: Fries |
| Citation | 1821 Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur. 10(1): 203 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Erysiphe orbicularis Ehrenberg |
| Identification made in | [no date] (1) |
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