This name is a synonym of Cyathea pungens (Willd.) Domin.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26606663) with original publication details: Syn. Fil. (ed. 2) 456 1874.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:17018370-1.
This name was in version 1 of The Plant List, record tro-26606663, and has not been changed.