Oidium
sp.
KW [Darwin] 51259. Place of collection: Ukraine; Kherson oblast; Kakhovka district; Kakhovka town (N46°48' E33°30'). Date of collection: 19 September 1940. Associated organism: Solanum tuberosum (leaf). Collector: Homolyako, M.I.. Identifier: Heluta, V.P..