Erysiphe polygoni
DC.
KW [Darwin] 11502. Place of collection: Ukraine; Zakarpatska Oblast; Uzhhorod District; Uzhhorod town; Skalka camp (N48°38' E22°20'). Date of collection: 6 September 1972. Associated organism: Polygonum aviculare (leaf). Collector: Dudka, I.O.. Identifier: Heluta, V.P..