Erysiphe polygoni
DC.
KW [Darwin] 53373. Place of collection: Ukraine; Volynska Oblast; Lyubeshiv District; Lyubotin village, near, to southeast (N51°51' E25°18'). Date of collection: 20 August 1998. Associated organism: Rumex acetosella (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..