Rhipsalis

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Rhipsalis

Rhipsalis Gaertn., Fruct. Sem. Pl. 1: 137. 1788, nom. cons., sec. Korotkova 2021
  • =Cassytha Mill., Gard. Dict., ed. 8: s.p. 1768, nom. illeg., syn. sec. ???
  • =Hariota Adans., Fam. Pl. 2: 243, 520. 1763, nom. rej., syn. sec. Farr, E. R. & Zijlstra G., eds. 1996+: 8 sept 20201 [is earlier homonym of Hariota DC. 1834]
  • 1. Farr, E. R. & Zijlstra G., eds. 1996+: Index Nominum Genericorum (ING): 8 sept 2020

Content

Acknowledgments

Compiled by Nadja Korotkova

Notes

Phylogenetics: The circumscription of Rhipsalis - one of the oldest genera of the family - has changed repeatedly over time, and often Hatiora, Pseudorhipsalis and Lepismium, all now accepted at generic rank, were variously subsumed under Rhipsalis. The morphology-based circumscription of Rhipsalis by Barthlott & Taylor (1995) has been entirely confirmed as monophyletic with maximal support in the molecular phylogenetic study of Korotkova & al. (2011); the same result was shown by Calvente & al. (2011b), though with a less comprehensive sampling.
Rhipsalis is notable since R. baccifera (Sol.) Stearn is the only species of the family that naturally occurs outside the New World. A

Taxon standing

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.

Descriptions (aggregated)

Old stem segment duration: deciduous [33]; stem width: 0.3–12 cm; stem shape: terete [18], flattened [12], angled [12], angle [1]; stem architecture: seam [1] entire plant habitat: epiphytic [31], epilithic [11], lithophytic [3], terrestrial [2], epiphyte [2]; entire plant orientation: pendent [33], semierect [4], erect [3]; entire plant branching: acrotonic [32], subacrotonic [2], mesotonic [1]; entire plant pubescence: sparse pubescent [14], glabrous [13], woolly [6], pubescent [1] flower quantity per areol contemporaneously: 1–13; flower coloration: white [27], whitish [18], yellowish [6], greenish [5], yellow [2], pale pink [2], red [1], orange [1], magenta [1], golden [1], cream [1], brownish [1]; flower architecture: actinomorphic [34]; flower position: lateral [36], subapical [33], apical [3], subterminal [2]; flower size qualitativ: small [34], minute [9], medium [3]; flower size quantitativ: 0.5–45 mm areole prominence: superficial [41], sunken [6], hidden [1] fruit coloration: white [17], whitish [10], pink [9], red [5], greenish [3], yellow [2], purplish [2], pale pink [2], magenta [2], reddish pink [1], reddish [1], pinkish [1], orange [1], green [1], greeen [1], gray [1], golden [1]; fruit shape: globose [20], subglobose [11], turbinate [4], ovoid [3], depressed globose [3], elongate [2], oblong [1] bud orientation: perpendicular [23], oblique [9], pendulous [2]
A single or the first number in square brackets denotes sample size

Bibliography

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