Erysiphe polygoni
DC.
KW [Darwin] 12326. Place of collection: Ukraine; Republic of Crimea; Chornomorske District; Okunīvka village (N45°22' E32°46'). Date of collection: 14 July 1982. Associated organism: Rumex lonaczewskii (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..