| Name | Erysiphe guttata var. betulae (de Candolle) Desmazières |
| Authorship | (de Candolle) Desmazières |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Erysiphe guttata (Wallroth) Link: Fries |
| Citation | 1843 Pl. Crypt. N. France Fasc. 27: no. 1307 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Erysiphe guttata var. betulae (de Candolle) Desmazières |
| Identification made in | [no date] (1) |
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