This name is a synonym of Acianthera geminicaulina (Ames) Pridgeon & M.W.Chase.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 159962) with original publication details: Schedul. Orchid. 6: 59 1923.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:202846-2.
This name was in version 1 of The Plant List, record kew-159962, and has not been changed.