This name is a synonym of Minuartia muscorum (Fassett) Rabeler.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 6300812) with original publication details: Rhodora 39(467): 460–461 1937.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:310127-2.
This name was in version 1 of The Plant List, record tro-6300812, and has not been changed.