| Name | Melampsora hydrangeae (Berkeley & M. A. Curtis) Farlow |
| Authorship | (Berkeley & M. A. Curtis) Farlow |
| Rank | Species |
| Placed in | Melampsora |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Melampsora hydrangeae (Berkeley & M. A. Curtis) Farlow |
| Identification made in | [no date] (2) |