This name is a synonym of Alsophila grevilleana (Mart.) D.S. Conant.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26621234) with original publication details: Icon. Pl. Crypt. 78 1834.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:73220-2.
This name was in version 1 of The Plant List, record tro-26621234, and has not been changed.