Erysiphe polygoni DC.

KW [Darwin] 12264. 采集地点: 乌克兰; Odesa Oblast; Berezivka District; Berezivka town; Berezivka forestry administration yard, near (N47°12' E30°54'). 采集日期: 1978年6月29日. 相关生物: Polygonum patulum (叶片). 采集者: Heluta, V.P.. 鉴定人: Heluta, V.P..