This name is a synonym of Quercus trojana subsp. euboica (Papaioann.) K.I.Chr..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 172671) with original publication details: Prakt. Acad. Athèn. 23: 336 1949.
This name was in version 1 of The Plant List, record kew-172671, and has not been changed.