Erysiphe trifolii
Grev.
KW [Darwin] 4959. Place of collection: Ukraine; Zaporizhzhia oblast; Vasylivka district; Skelky village (N47°26' E35°07'). Associated organisms: Ampelomyces sp.; Melilotus albus (leaf); Uromyces baeumlerianus. Identifier: Homolyako, M.I..