| Name | Erysiphe ellisii (U. Braun) U. Braun & S. Takamatsu |
| Authorship | (U. Braun) U. Braun & S. Takamatsu |
| Rank | Species |
| Placed in | Erysiphe R. Hedwig ex de Candolle: Fries |
| Citation | 2000 Schlechtendalia 4: 8 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Erysiphe ellisii (U. Braun) U. Braun & S. Takamatsu |
| Identification made in | 2024 (1), 2025 (1) |