| Name | Oidium elongatum Linder |
| Authorship | Linder |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Oidium |
| Citation | 1942 Lloydia 5(3): 191 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Oidium elongatum Linder |
| Identification made in | [no date] (1), 1970 (1) |