Erysiphe polygoni
DC.
KW [Darwin] 11536. Place of collection: Ukraine; Republic of Crimea; Rozdol’ne District; Syeverne village (N45°41' E33°03'). Date of collection: 15 July 1978. Associated organism: Polygonum aviculare (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..