Rhipsalidopsis
Rhipsalidopsis gaertneri in cultivation
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Rhipsalideae
Genus: Rhipsalidopsis
Britton & Rose[1]
Species

See text.

Rhipsalidopsis is a small genus of flowering plant in the family Cactaceae, native to southern Brazil.[2] Like other members of the tribe Rhipsalideae, its species are epiphytes, growing on trees.

Taxonomy

The genus Rhipsalidopsis was established by Nathaniel Lord Britton and Joseph Nelson Rose in 1923.[1] The generic name means 'like Rhipsalis'. They transferred one species from Rhipsalis to their new genus as Rhipsalidopsis rosea. The presence of a short tube at the base of the flower where the petals were fused was regarded as one of the diagnostic features.[3] The taxonomy of genera like Rhipsalidopsis that are placed in the tribe Rhipsalideae was described as confused by Anderson in 2001, with species moved among Rhipsalis, Hatiora and Schlumbergera in particular.[4] A molecular phylogenetic study in 2011 showed that two species then placed in Hatiora were separate from other species in the genus and could be placed in an expanded Schlumbergera.[5] Others placed them in a revived genus Rhipsalidopsis.[6][7][2]

Species

As of January 2023, Plants of the World Online accepted the following species:[2]

ImageScientific nameDistribution
Rhipsalidopsis gaertneri (Regel) Linding.Brazil (Paraná and Santa Catarina)
Rhipsalidopsis rosea (Lagerh.) Britton & RoseBrazil.

An artificial hybrid between these two species is also known:

ImageScientific nameDistribution
Rhipsalidopsis × graeseri David Hunt, 1992Brazil

References

  1. 1 2 "Rhipsalidopsis Britton & Rose", The International Plant Names Index, retrieved 2023-01-24
  2. 1 2 3 "Rhipsalidopsis Britton & Rose", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2023-01-24
  3. ↑ Britton, Nathaniel Lord & Rose, Joseph Lord (1923), "2. Rhipsalidopsis gen. nov.", The Cactaceae, Washington: Carnegie Institution, pp. 209–210
  4. ↑ Anderson, Edward F. (2001), The Cactus Family, Pentland, Oregon: Timber Press, p. 375, ISBN 978-0-88192-498-5
  5. ↑ Calvente, Alice; Zappi, Daniela C.; Forest, Félix & Lohmann, Lúcia G. (2011), "Molecular phylogeny of tribe Rhipsalideae (Cactaceae) and taxonomic implications for Schlumbergera and Hatiora", Molecular Phylogenetics and Evolution, 58 (3): 456–468, doi:10.1016/j.ympev.2011.01.001, PMID 21236350
  6. ↑ Korotkova, Nadja; Borsch, Thomas; Quandt, Dietmar; Taylor, Nigel P.; Müller, Kai F. & Barthlott, Wilhelm (2011), "What does it take to resolve relationships and to identify species with molecular markers? An example from the epiphytic Rhipsalideae (Cactaceae)", American Journal of Botany, 98 (9): 1549–1572, doi:10.3732/ajb.1000502, PMID 21900612
  7. ↑ Lodé, Joël (2015), "Rhipsalidopsis", Taxonomy of the Cactaceae : a new classification of cacti based on molecular research and fully explained (vols. 1 and 2), Cuevas del Almanzora, ISBN 978-84-617-2974-6, accessed 2019-06-19 via Rhipsalidopsis


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