Erysiphe trifolii
Grev.
KW [Darwin] 12599. Place of collection: Ukraine; Chernihiv oblast; Semenivka district; Semenivka town (N52°10' E32°35'). Date of collection: 15 August 1948. Associated organism: Trifolium repens (leaf). Collector: Morochkovsky, S.F.. Identifier: Heluta, V.P..