This name is a synonym of Carpinus × schuschaensis H.J.P.Winkl..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 34343) with original publication details: Trudy Fiz.-Mat. Vidd. 15(1): 51-107 1929.
This name was in version 1 of The Plant List, record kew-34343.