| Name | Erysiphe semitosta (Berkeley & M. A. Curtis) U. Braun & S. Takamatsu |
| Authorship | (Berkeley & M. A. Curtis) U. Braun & S. Takamatsu |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Erysiphe R. Hedwig ex de Candolle: Fries |
| Citation | 2000 Schlechtendalia 4: 13 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Erysiphe semitosta (Berkeley & M. A. Curtis) U. Braun & S. Takamatsu |
| Identification made in | [no date] (4) |