This name is a synonym of Carpinus orientalis subsp. macrocarpa (Willk.) Browicz.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 34406) with original publication details: Forstl. Fl. Deutschl. Oesterr. 368 1887.
This name was in version 1 of The Plant List, record kew-34406, and has not been changed.