Erysiphe knautiae
Duby
KW [Darwin] 11324. Place of collection: Ukraine; Donetsk Oblast; Novoazovsk District; Khomutovskyi Steppe reserve (N47°17' E38°10'). Date of collection: 12 October 1975. Associated organism: Knautia arvensis (leaf). Collector: Heluta, V.P.. Identifier: Heluta, V.P..