This name is a synonym of Pseudorhipsalis ramulosa (Salm-Dyck) Barthlott.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 5107296) with original publication details: Monatsschr. Kakteenk. 28: 78 1918.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:219344-2.
This name was in version 1 of The Plant List, record tro-5107296.