This name is a synonym of Cheilanthes microphylla (Sw.) Sw..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 26603776) with original publication details: Prodr. 135 1788.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:17011530-1.
This name was in version 1 of The Plant List, record tro-26603776.