Erysiphe polygoni DC.

KW [Darwin] 11586. 采集地点: 乌克兰; Chernihiv Oblast; Novhorod-Siverskyi District; Chulatīv village (N51°58' E33°20'). 采集日期: 1947年8月6日. 相关生物: Polygonum aviculare (叶片). 采集者: Morochkovsky, S.F.. 鉴定人: Heluta, V.P..