This name is a synonym of Hyophorbe amaricaulis Mart..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 14637) with original publication details: Ill. Hort. 13: t. 462 1866.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:664222-1.
This name was in version 1 of The Plant List, record kew-14637, and has not been changed.