| Name | Ascochytula ludwigiana Petrak |
| Authorship | Petrak |
| Rank | Species |
| Placed in | Ascochytula (Potebnia) Diedicke |
| Citation | 1923 Ann. Mycol. 21(3/4): 286 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Ascochytula ludwigiana Petrak |
| Identification made in | [no date] (2) |