This name is a synonym of Alsophila tussacii (Desv.) D.S. Conant.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26621231) with original publication details: Mém. Soc. Linn. Paris 6: 323 1827.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:73417-2.
This name was in version 1 of The Plant List, record tro-26621231, and has not been changed.