Erysiphe polygoni DC.

KW [Darwin] 13544. 采集地点: 乌克兰; Dnipropetrovsk Oblast; Tsarychanka District; Mohilīv village (near, to south); bank river Orīl’ (N48°49' E34°25'). 采集日期: 1994年8月7日. 相关生物: Rumex obtusifolius (叶片). 采集者: Heluta, V.P.. 鉴定人: Heluta, V.P..