This name is a synonym of Pseudostellaria oxyphylla (B.L. Rob.) R.L. Hartm. & Rabeler.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50257813) with original publication details: Bot. Gaz. 25(3): 165–166 1898.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:159382-1.
This name was in version 1 of The Plant List, record tro-50257813, and has not been changed.