Erysiphe polygoni
DC.
KW [Darwin] 11564. Place of collection: Ukraine; Poltava Oblast; Poltava District; Kopyly village (N49°33' E34°37'). Date of collection: 15 June 1977. Associated organism: Polygonum aviculare (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..