| Name | Erysiphe penicillata var. alni (de Candolle) Link |
| Authorship | (de Candolle) Link |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Erysiphe penicillata (Wallroth) Link |
| Citation | 1824 Sp. Pl., ed. 4 [Willd.]. 6(1): 113 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Erysiphe penicillata var. alni (de Candolle) Link |
| Identification made in | [no date] (1) |
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