This name is a synonym of Microcycas calocoma (Miq.) A.DC..
The record derives from WCSP
(data supplied on 2012-03-26)
which reports it as a synonym (record 378794) with original publication details: Fl. Serres Jard. Eur. 7(Misc.): 141 1852.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:287151-2.
This name was in version 1 of The Plant List, record kew-2469852, and has not been changed.