| Name | Uncinula adunca f. salicum (Rabenhorst) P. Karsten |
| Authorship | (Rabenhorst) P. Karsten |
| Rank | Forma |
| Placed in | Uncinula adunca (Wallroth) Léveillé |
| Citation | 1866 Fungi Fenniae Exsicc. 4: 367 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Uncinula adunca f. salicum (Rabenhorst) P. Karsten |
| Identification made in | [no date] (1) |