Erysiphe polygoni
DC.
KW [Darwin] 11582. Place of collection: Ukraine; Khmelnitskyi Oblast; Nova Ushytsia District; Struha village (N48°48' E27°18'). Date of collection: 24 June 1978. Associated organism: Polygonum aviculare (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..