| Name | Peronospora grisea f. trifolii de Bary |
| Authorship | de Bary |
| Rank | Forma |
| Placed in | Peronospora grisea Unger |
| Citation | 1857 Klotzsch. Herb. Vivum Mycol. Sistems Fungorum German., Ed. Nov. Cent. 4: no. 375 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Peronospora grisea f. trifolii de Bary |
| Identification made in | [no date] (1) |