Erysiphe polygoni
DC.
KW [Darwin] 12267. Place of collection: Ukraine; Odesa Oblast; Ovidiopol’ District; Roksolani village (N46°10' E30°27'). Date of collection: 3 July 1978. Associated organism: Polygonum patulum (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..