Erysiphe polygoni
DC.
KW [Darwin] 11495. Place of collection: Ukraine; Donetsk Oblast; Sloviansk District; Mayaki village; yard of forestry (N48°57' E37°37'). Date of collection: 21 July 1977. Associated organism: Polygonum aviculare (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..