| Name | Diaporthe thelebola f. alni-incanae Saccardo |
| Authorship | Saccardo |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Diaporthe thelebola (Fries: Fries) Saccardo |
| Citation | 1876 Mycoth. Veneta Cent. 8: no. 772 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Diaporthe thelebola f. alni-incanae Saccardo |
| Identification made in | [no date] (1) |