Peronospora arvensis
Gäum.
KW [Darwin] 17801. Place of collection: Ukraine; Kiev oblast; Kiev city; Central Botanic Garden (N50°25' E30°32'). Date of collection: 1 May 1971. Associated organism: Veronica hederifolia (leaf). Collector: Lavitska, Z.G.. Identifier: Lavitska, Z.G..