| Name | Peronospora pygmaea (Unger) Unger |
| Authorship | (Unger) Unger |
| Rank | Species |
| Placed in | Peronospora |
| Contains | Peronospora pygmaea var. vulgaris de Bary |
| Citation | 1847 Bot. Zeitung (Berlin) 5: 315 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Peronospora pygmaea (Unger) Unger |
| Identification made in | [no date] (1) |