| Name | Erysiphe howeana U. Braun | 
| Authorship | U. Braun | 
| Rank | Species | 
| Placed in | Erysiphe R. Hedwig ex de Candolle: Fries | 
| Citation | 1982 Mycotaxon 14(1): 373 | 
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Erysiphe howeana U. Braun | 
| Identification made in | [no date] (2), 1983 (1) |