Erysiphe polygoni
DC.
KW [Darwin] 11563. Place of collection: Ukraine; Poltava Oblast; Lubny District; Lubny town (N50°01' E32°59'). Date of collection: 14 June 1977. Associated organism: Polygonum aviculare (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..