| Name | Erysiphe californica U. Braun |
| Authorship | U. Braun |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Erysiphe R. Hedwig ex de Candolle: Fries |
| Citation | 1984 Mycotaxon 20(2): 492 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Erysiphe californica U. Braun |
| Identification made in | [no date] (3), 1983 (1) |
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