| Name | Erysiphe galii var. riedliana (Speer) U. Braun |
| Authorship | (Speer) U. Braun |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Erysiphe galii S. Blumer |
| Citation | 1983 Mycotaxon 18(1): 121 |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Erysiphe galii var. riedliana (Speer) U. Braun |
| Identification made in | 1984 (9), 1985 (1) |