Erysiphe trifolii
Grev.
KW [Darwin] 13152. Place of collection: Ukraine; Vinnytsia Oblast; Koziatyn town (N49°44' E28°40'). Date of collection: 1 October 1925. Associated organism: Melilotus officinalis (leaf). Collector: Yakovlev, M.. Identifier: Heluta, V.P..