This name is a synonym of Ulmus castaneifolia Hemsl..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50127504) with original publication details: 1(1): 77 1958.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:77099089-1.
This name was in version 1 of The Plant List, record tro-50127504, and has not been changed.