Rhipsalis novaesii Gurke, Monasschr. Kakteenk. 19: 12. 1909
Treated as a synonym of R. megalantha in B&R 1923
Notes from B&R
This plant is known wild only from the collection of Dr. Lofgren, but is now widely found in cultivation, sometimes under the names Rhipsalis grandiflora or R. novaesii. It has the largest flower of any species of Rhipsalis.