This name is a synonym of Acianthera minima (Cogn.) F.Barros.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 52118) with original publication details: Fl. Bras. 3(6): 552 1906.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:71790-2.
This name was in version 1 of The Plant List, record kew-52118, and has not been changed.