Erysiphe polygoni
DC.
KW [Darwin] 12275. Place of collection: Ukraine; Kyiv Oblast; Kiev city; Zvirynets suburb (N50°25' E30°32'). Date of collection: 31 July 1946. Associated organism: Polygonum persicaria (leaf). Collector: Isaeva, O.V.. Identifier: Heluta, V.P..