| Name | Cercospora jahnii Sydow |
| Authorship | Sydow |
| Rank | Species |
| Placed in | Cercospora |
| Citation | 1930 Ann. Mycol. 28 91/2): 214 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Cercospora jahnii Sydow |
| Identification made in | [no date] (2) |