Erysiphe polygoni
DC.
KW [Darwin] 11524. Place of collection: Ukraine; Kyiv Oblast; Kiev city; Darnytsia suburb (N50°26' E30°39'). Date of collection: 23 July 1946. Associated organism: Polygonum aviculare (leaf). Collector: Isaeva, O.V.. Identifier: Heluta, V.P..