| Name | Erysiphe tomentosa G. H. Otth | 
| Authorship | G. H. Otth | 
| Rank | Species | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Erysiphe R. Hedwig ex de Candolle: Fries | 
| Citation | 1866 ["1865"] Mitth. Naturf. Ges. Bern. 580-602: 168 | 
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Erysiphe tomentosa G. H. Otth | 
| Identification made in | [no date] (1) | 
