Oidium
sp.
KW [Darwin] 16205. Place of collection: Ukraine; Zaporizhzhia oblast; Vasylivka district; Skelky village (N47°26' E35°07'). Date of collection: 12 September 1940. Associated organism: Citrullus lanatus (leaf). Collector: Homolyako, M.I.. Identifier: Gomoliako, M.I..