| Name | Oidium tabaci Thümen |
| Authorship | Thümen |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Oidium |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Oidium tabaci Thümen |
| Identification made in | [no date] (2) |
| Name | Oidium tabaci Thümen |
| Authorship | Thümen |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Oidium |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Oidium tabaci Thümen |
| Identification made in | [no date] (2) |