This name is a synonym of Cycas thouarsii R.Br..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 383370) with original publication details: Gen. Pl. Cat. 42 1878.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:297009-1.
This name was in version 1 of The Plant List, record kew-2749578.