Erysiphe polygoni
DC.
KW [Darwin] 12292. Place of collection: Ukraine; Cherkasy Oblast; Kaniv District; Līplyave village (N49°47' E31°33'). Date of collection: 10 July 1983. Associated organism: Rumex acetosa (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..