Erysiphe polygoni
DC.
KW [Darwin] 11575. Place of collection: Ukraine; Kherson Oblast; Skadovsk District; Volodimirīvka village (N46°07' E32°37'). Date of collection: 25 August 1986. Associated organism: Polygonum aviculare (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..