Erysiphe trifolii
Grev.
KW [Darwin] 51646. Place of collection: Ukraine; Khmelnitskyi oblast; Kamianets-Podilskyi district; Humentsi village (N48°46' E26°38'). Date of collection: 22 July 1948. Associated organism: Trifolium aureum (leaf). Collector: Isayeva, O.V.. Identifier: Heluta, V.P..