◊ Phytotaxa 327(1):31 (2017)
◊◊ Rhipsalis angustissima Web - Bull. Mus. Hist. Nat. Paris 8:465 (1902)
Disocactus ramulosus angustissimus (Web)Kimn - CSJ(USA) 58(2):67 (1987)
Pseudorhipsalis ramulosa f angustissima (Web)Barth - Bradleya 9:90 (1991)
Disocactus ramulosus f angustissimus (Web)Kimn - Haseltonia 1:127 (1993)
- Basal stems cylindric, secundary stems leaflike, lanceolate, 9-10 cm long, 0.6-1.5 cm wide. Flowers 4-5 mm long. Outer petals carmine, inner petals near white. Fruit white. Seeds black.
- Costa Rica: Caché, Cartago.
Backeberg 2:673