Golovinomyces mayorii (S. Blumer) Heluta

KW [Darwin] 53754. Place of collection: Ukraine; Ternopil oblast; Husiatyn district; Medobori Nature Reserve; Krasnyans’ke forestry; Mali Birki village, round 6, plot 37; Poligon parcel (N49°18' E26°10'). Date of collection: 9 September 1994. Associated organism: Cirsium arvense (stem). Collector: Dudka, I.O.. Identifier: Kolomīyets’, Ī.V..