Erysiphe polygoni
DC.
KW [Darwin] 51582. Place of collection: Ukraine; Kyiv Oblast; Kiev city; Darnytsia suburb (N50°26' E30°39'). Date of collection: 23 September 1959. Associated organism: Rumex acetosella (leaf). Collector: Sokolova, M.D.. Identifier: Heluta, V.P..