| Name | Erysiphe guttata var. ulmorum (Wallroth) Link |
| Authorship | (Wallroth) Link |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Erysiphe guttata (Wallroth) Link: Fries |
| Citation | 1824 Sp. Pl., ed. 4 [Willd.]. 6(1): 117 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Erysiphe guttata var. ulmorum (Wallroth) Link |
| Identification made in | [no date] (1) |