| Name | Uncinula flexuosa Peck |
| Authorship | Peck |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Uncinula |
| Citation | 1872 Trans. Albany Inst. 7: 215 |
| Holdings | 35 Specimens held in the Harvard University Herbaria identified as Uncinula flexuosa Peck |
| Identification made in | [no date] (34), 1930 (1) |