Lepismium in Allg. Gartenzeitung 3: 315. 1835 sec. Korotkova & al. 2011
- Type: Lepismium commune
- =Rhipsalis subg. Ophiorhipsalis, Gesamtbeschr. Kakt.: 615. 1897–1899 syn. sec. ???
- ≡Lepismium subg. Ophiorhipsais in Bradleya 5: 99. 1987 syn. sec. ???
- ≡Ophiorhipsalis in Sukkulenty 4(1-2): 39. 2002 ["2001"] syn. sec. Korotkova 2021
- =Nothorhipsalis in Sukkulenty 4(1-2): 29. 2002 ["2001"] syn. sec. Korotkova 2021
Category B. The genus is monophyletic based on phylogenetic studies that support the clade based on a sufficiently dense or even complete sampling, or support a monotypic genus as a distinct lineage, but do not provide a new taxonomic treatment at the species level. In many cases, older classical taxonomic synopses or a monographic treatment exist for these genera providing a reliable assessment of the species included.
Phylogenetics: Several considerably different generic concepts have been suggested for Lepismium in the past 80 years. It was either recognized as monotypic for L. cruciforme (Vell.) Miq., e.g. by Britton & Rose (1923) or included into Rhipsalis (Schumann 1899; Vaupel 1925, 1926). Barthlott (1987) and Barthlott & Taylor (1995) redefined Lepismium based on the mesotonic branching as main diagnostic character, but this circumscription was found to be polyphyletic by Nyffeler (2002) and Korotkova & al. (2010). Consequently, some of its species were transferred to Lymanbensonia and Pfeiffera by Korotkova & al. (2010).A
Old stem segment duration: persistent ; stem width: 0–7 cm; stem shape: angled , flattened , terete  entire plant habitat: epiphytic , epilithic , epiphyte ; entire plant orientation: pendent , creeping ; entire plant branching: mesotonic ; entire plant pubescence: glabrous , woolly  flower quantity per areol contemporaneously: 1; flower coloration: whitish , yellowish , yellow , white , red , pinkish , cream ; flower architecture: actinomorphic ; flower position: subapical , lateral ; flower size qualitativ: small ; flower size quantitativ: 15–26 mm areole prominence: superficial , immersed  fruit coloration: red , pink , magenta , deepening , dark pink ; fruit shape: globose , subglobose , ovoid  bud orientation: oblique 
A. Hernández-Ledesma, P., Berendsohn, W. G., Borsch, T., von Mering, S., Akhani, H., Arias, S., Castañeda-Noa, I., Eggli, U., Eriksson, R., Flores-Olvera, H., Fuentes-Bazán, S., Kadereit, G., Klak, C., Korotkova, N., Nyffeler, R., Ocampo, G. & Ochoterena, H. 2015: A taxonomic backbone for the global synthesis of species diversity in the angiosperm order Caryophyllales. – Willdenowia 45(3): 281-383