Oidium
sp.
KW [Darwin] 16201. Place of collection: Ukraine; Sumy oblast; Lebedyn district; Mykhailivska Tsilyna reserve; lake, near (N50°45' E34°10'). Date of collection: 7 September 1954. Associated organism: Cucurbita pepo (leaf). Collector: Morochkovsky, S.F.. Identifier: Morochkovski, S.F..