Erysiphe polygoni
DC.
KW [Darwin] 10956. Place of collection: Ukraine; Republic of Crimea; Yalta District; Yalta Mountain Forest reserve; Ai Petri yaila (N44°2x' E34°0x'). Date of collection: 15 September 1977. Associated organism: Rumex crispus (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..