Erysiphe trifolii
Grev.
KW [Darwin] 12417. Place of collection: Ukraine; Donetsk oblast; Sloviansk district; Mayaki village; Mayats’kiĭ forest forest parcel; forest planting (N48°57' E37°37'). Date of collection: 21 July 1977. Associated organism: Melilotus officinalis (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..