Erysiphe polygoni
DC.
KW [Darwin] 11486. Place of collection: Ukraine; Donetsk oblast; Volnovakha district; Volnovakha town (N47°36' E37°30'). Date of collection: 11 July 1978. Associated organism: Polygonum aviculare (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..