| Name | Oidium drummondii Thümen |
| Authorship | Thümen |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Oidium |
| Citation | 1878 Mycoth. Univ. Cent. 12: no. 1177 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Oidium drummondii Thümen |
| Identification made in | [no date] (5) |