Erysiphe polygoni
DC.
KW [Darwin] 13543. Place of collection: Ukraine; Poltava Oblast; Mashivka District; Ryas’ke village; Orīl’ river (side) (N49°10' E34°54'). Date of collection: 31 July 1994. Associated organism: Rumex hydrolapathum (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..