This name is a synonym of Thelypteris chaseana Schelpe.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26604409) with original publication details: J. S. African Bot. 40: 148 1974.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:17431930-1.
This name was in version 1 of The Plant List, record tro-26604409.