| Name | Oidium biforme Linder |
| Authorship | Linder |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Oidium |
| Citation | 1942 Lloydia 5(3): 188 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Oidium biforme Linder |
| Identification made in | [no date] (2) |