This name is a synonym of Cnemidaria decurrens (Liebm.) R.M. Tryon.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26608395) with original publication details: Pteridophyta 264 1929.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:17314430-1.
This name was in version 1 of The Plant List, record tro-26608395, and has not been changed.