Erysiphe polygoni DC.

KW [Darwin] 12248. Place of collection: Ukraine; Kiev oblast; Pereiaslav-Khmelnytskyi district; Pereiaslav-Khmel’nytskyi town (near, to south) (N50°10' E31°33'). Date of collection: 13 August 1985. Associated organism: Polygonum novoascanicum (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..