| Name | Valsa ludibunda f. populi-nigrae Saccardo |
| Authorship | Saccardo |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Valsa ludibunda Saccardo |
| Citation | 1877 Michelia 1(1): 17 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Valsa ludibunda f. populi-nigrae Saccardo |
| Identification made in | [no date] (1) |