This name is a synonym of Royena sessilifolia Hiern.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 465013) with original publication details: Ann. Univ. Lyon 6(2): 73 1892.
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 sessilifolia in version 1 of The Plant List.