Erysiphe trifolii Grev.

KW [Darwin] 53663. Place of collection: Ukraine; Ternopil oblast; Kremenets district; Medobori Nature Reserve; Kremenets’ki Gori section; Berezhentsi village; Bona hill, to north (N50°04' E25°36'). Date of collection: 15 September 1994. Associated organism: Trifolium pratense (leaf). Collector: Dudka, I.O.. Identifier: Kolomīyets’, Ī.V..