Erysiphe polygoni DC.

KW [Darwin] 12237. 采集地点: 乌克兰; Kirovohrad Oblast; Oleksandrivka District; Oleksandrivka settlement (near) (N48°57' E32°13'). 采集日期: 1977年9月9日. 相关生物: Polygonum lapathifolium (叶片). 采集者: Heluta, V.P.. 鉴定人: Heluta, V.P..