Oidium sp.

KW [Darwin] 50979. 采集地点: 乌克兰; Kyiv Oblast; Pereiaslav-Khmelnytskyi District; Studenyky village; yard of the forest office (N50°10' E31°33'). 采集日期: 1975年6月13日. 相关生物: Viola tricolor (叶片). 采集者: Berehova, V.P.. 鉴定人: Heluta, V.P..