Erysiphe polygoni
DC.
KW [Darwin] 12269. Place of collection: Ukraine; Odesa Oblast; Shyriaieve District; Starī Mayaki village (N47°22' E30°18'). Date of collection: 28 June 1978. Associated organism: Polygonum patulum (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..