What is Ulmus macrocarpa var. macrocarpa?

Ulmus macrocarpa var. macrocarpa L. K. Fu is found on hillslopes and in valleys at elevations of 700–800 m in the Chinese provinces of Anhui, Gansu, Hebei, Heilongjang, Henan, Hubei, Jiangsu, Jilin, Liaoning, Nei Mongol, eastern Qinghai, Shaanxi, Shanxi, Shandong. Beyond China it is also found in Korea, Mongolia, and Russia.

Fu sank Ulmus taihangshanensis S.Y.Wang as a synonym for this variety, but U. taihangshanensis, as described from Henan, differs in having more pubescent twigs which never develop corky wings, and thinner leaves. . U. taihangshanensis has more recently been sunk as a synonym of Ulmus lamellosa.