| 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) | 
