This name is a synonym of Nephrodium expansum (Poir.) Desv..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26625409) with original publication details: Encycl. 5: 523 1804.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:17188440-1.
This name was in version 1 of The Plant List, record tro-26625409, and has not been changed.