Erysiphe trifolii
Grev.
KW [Darwin] 12426. Place of collection: Ukraine; Kiev oblast; Borispil’ district; Nesterivka village (N50°23' E30°58'). Date of collection: 3 August 1947. Associated organism: Melilotus officinalis (leaf). Collector: Trykoz, G.O.. Identifier: Heluta, V.P..