Erysiphe polygoni
DC.
KW [Darwin] 51568. Place of collection: Ukraine; Mykolaiv Oblast; Snihurivka District; Snihurivka settlement (N47°04' E32°47'). Date of collection: 5 July 1952. Associated organism: Polygonum sp. (leaf). Collector: Radzīyevs’kiĭ, H.. Identifier: Heluta, V.P..