Erysiphe polygoni
DC.
KW [Darwin] 12247. Place of collection: Ukraine; Donetsk Oblast; Krasnyi Lyman (near to west) (N48°59' E37°49'). Date of collection: 22 August 1985. Associated organism: Polygonum novoascanicum (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..