| Name | Uncinula bicornis f. aceris-campestris Thümen |
| Authorship | Thümen |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Uncinula bicornis (Wallroth) Léveillé |
| Citation | 1875 Mycoth. Univ. Cent. 2: 154 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Uncinula bicornis f. aceris-campestris Thümen |
| Identification made in | [no date] (1) |