This name is a synonym of Diospyros japonica Siebold & Zucc..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 453436) with original publication details: Acta Phytotax. Sin. 1: 215 1951.
This name record (from WCSP) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Diospyros glaucifolia in version 1 of The Plant List.