This name is a synonym of Trichomanes angustatum Carmich..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26606422) with original publication details: Philipp. J. Sci. 73: 466 1941.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:17424390-1.
This name was in version 1 of The Plant List, record tro-26606422, and has not been changed.