Erysiphe polygoni
DC.
KW [Darwin] 11500. Place of collection: Ukraine; Zakarpatska Oblast; Berehove District; Berehy village (N48°15' E22°45'). Date of collection: 31 August 1984. Associated organism: Polygonum aviculare (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..