This name is a synonym of Acianthera exarticulata (Barb.Rodr.) Pridgeon & M.W.Chase.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 159870) with original publication details: Gen. Spec. Orchid. 2: 27 1881.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:322441-2.
This name was in version 1 of The Plant List, record kew-159870, and has not been changed.