| Name | Oidium leucoconium Desmazières |
| Authorship | Desmazières |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Oidium |
| Citation | 1846 Pl. Crypt. N. France 4: no. 303 |
| Holdings | 12 Specimens held in the Harvard University Herbaria identified as Oidium leucoconium Desmazières |
| Identification made in | [no date] (11), 1930 (1) |