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 26614622) with original publication details: Repert. Spec. Nov. Regni Veg. 25: 57 1928.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:9929-2.
This name was in version 1 of The Plant List, record tro-26614622, and has not been changed.