Erysiphe polygoni
DC.
KW [Darwin] 12260. Place of collection: Ukraine; Republic of Crimea; Feodosiya District; Karadah reserve; Karadah valley (south-west slope) (N44°55' E35°13'). Date of collection: 5 July 1983. Associated organism: Polygonum patulum (leaf). Collector: Isikov, V.P.. Identifier: Heluta, V.P..