| Name | Erysiphe macrospora (Peck) U. Braun & S. Takamatsu |
| Authorship | (Peck) U. Braun & S. Takamatsu |
| Rank | Species |
| Placed in | Erysiphe R. Hedwig ex de Candolle: Fries |
| Citation | 2000 Schlechtendalia 4: 21 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Erysiphe macrospora (Peck) U. Braun & S. Takamatsu |
| Identification made in | [no date] (3), 2022 (1) |