| Name | Diaporthe orthoceras f. helianthi-annui Saccardo |
| Authorship | Saccardo |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Diaporthe orthoceras (Fries: Fries) Nitschke |
| Citation | 1875 Mycoth. Veneta Cent. III: no. 216 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Diaporthe orthoceras f. helianthi-annui Saccardo |
| Identification made in | [no date] (1) |
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