Erysiphe polygoni
DC.
KW [Darwin] 11492. Place of collection: Ukraine; Donetsk Oblast; Novoazovsk District; Khomutovskyi Steppe reserve (N47°17' E38°10'). Date of collection: 22 August 1974. Associated organism: Polygonum aviculare (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..