Erysiphe cruciferarum
Opiz ex L. Junell
KW [Darwin] 51459. Place of collection: Ukraine; Republic of Crimea; Kerch district; Heroyivka settlement (N45°13' E36°24'). Date of collection: 4 August 1989. Associated organism: Sisymbrium loeselii (leaf). Collector: Dudka, I.O.. Identifier: Heluta, V.P..