This name is a synonym of Diospyros californica (Brandegee) I.M.Johnst..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 384905) with original publication details: Zoe 5: 164 1903.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:81254-2.
This name was in version 1 of The Plant List, record kew-2770624.