| Name | Ascochyta petasitidis Petrak |
| Authorship | Petrak |
| Rank | Species |
| Placed in | Ascochyta Libert |
| Citation | 1925 Ann. Mycol. 23 (1/2): 126 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Ascochyta petasitidis Petrak |
| Identification made in | [no date] (4) |
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