Erysiphe trifolii
Grev.
KW [Darwin] 13163. Place of collection: Ukraine; Cherkasy oblast; Zvenyhorodka district; Kozatske village (N49°05' E31°08'). Date of collection: 17 September 1925. Associated organism: Melilotus officinalis (leaf). Collector: Pidoplichko, M.M.. Identifier: Heluta, V.P..