| Name | Peronospora arenariae var. macrospora Farlow |
| Authorship | Farlow |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Peronospora arenariae (Berkeley) Tulasne |
| GUID | urn:lsid:indexfungorum.org:names:124558 |
| Citation | 1884 Bot. Gaz. 9(3): 38 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Peronospora arenariae var. macrospora Farlow |
| Identification made in | [no date] (1) |