| Name | Aecidium hydrangeae Patouillard |
| Authorship | Patouillard |
| Rank | Species |
| Placed in | Aecidium |
| Holdings | 8 Specimens held in the Harvard University Herbaria identified as Aecidium hydrangeae Patouillard |
| Identification made in | [no date] (8) |
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