Erysiphe polygoni DC.

KW [Darwin] 12265. 采集地点: 乌克兰; Odesa Oblast; Bilhorod-Dnistrovskyi District; Bilhorod-Dnistrovskyi town, near, to south (N46°11' E30°20'). 采集日期: 1978年7月3日. 相关生物: Polygonum patulum (叶片). 采集者: Heluta, V.P.. 鉴定人: Heluta, V.P..