Peronospora arborescens
(Berk.) Casp.
KW [Darwin] 17788. Place of collection: Ukraine; Zhytomyr oblast; Liubar district; Nova Chortoriya village (N50°02' E27°42'). Date of collection: 8 July 1927. Associated organism: Papaver somniferum (leaf). Collector: Mukha. Identifier: Mukha.