This name is a synonym of Ulmus davidiana var. japonica (Rehder) Nakai.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 33300246) with original publication details: Trees & Shrubs 2(1): 1 1907.
This name was in version 1 of The Plant List, record tro-33300246, and has not been changed.