This name is a synonym of Rhipsalis micrantha (Kunth) DC..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 5101933) with original publication details: Akad. Wiss. Abh. Math.-Naturwiss. Kl. 10: 655 1974.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:138368-1.
This name was in version 1 of The Plant List, record tro-5101933.