Erysiphe polygoni
DC.
KW [Darwin] 12320. Place of collection: Ukraine; Republic of Crimea; Yalta District; Ponyzivka village (N44°23' E33°57'). Date of collection: 28 July 1972. Associated organism: Rumex crispus (leaf). Collector: Dudka, I.O.. Identifier: Heluta, V.P..