| Name | Aecidium quintum Sydow & P. Sydow |
| Authorship | Sydow & P. Sydow |
| Rank | Species |
| Placed in | Aecidium |
| Citation | 1917 Ann. Mycol. 15 (1/2): 144 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Aecidium quintum Sydow & P. Sydow |
| Identification made in | [no date] (1) |