This name is a synonym of Gayophytum micranthum Hook. & Arn..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50127228) with original publication details: Index Sem. (St. Petersburg) 2: 44 1835.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:613742-1.
This name was in version 1 of The Plant List, record tro-50127228, and has not been changed.