| Name | Erysiphe alphitoides (Griffon & Maublanc) U. Braun & S. Takamatsu |
| Authorship | (Griffon & Maublanc) U. Braun & S. Takamatsu |
| Rank | Species |
| Placed in | Erysiphe R. Hedwig ex de Candolle: Fries |
| Citation | 2000 Schlechtendalia 4: 5 |
| Holdings | 8 Specimens held in the Harvard University Herbaria identified as Erysiphe alphitoides (Griffon & Maublanc) U. Braun & S. Takamatsu |
| Identification made in | [no date] (6), 2025 (2) |