Erysiphe polygoni
DC.
KW [Darwin] 11533. Place of collection: Ukraine; Republic of Crimea; Bakhchysarai District; Tankove village (N44°35' E33°47'). Date of collection: 15 September 1977. Associated organism: Polygonum aviculare (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..