Reicheocactus

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Reicheocactus
Xian Ren Zhang -Hei Xie Zi Reicheocactus pseudoreicheanus (Echinopsis famatimensis) -Ri Ben Da Ban Xian Hua Jing Fang Guan Osaka Sakuya Konohana Kan, Japan- (40360118800).jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cereeae
Subtribe: Trichocereinae
Genus: Reicheocactus
Backeb.
Species:
R. famatimensis
Binomial name
Reicheocactus famatimensis
(Speg.) Schlumpb.
Synonyms [2]
List
    • Echinocactus famatinensisSpeg.
    • Echinopsis famatinensis(Speg.) Werderm.
    • Lobivia famatinensis(Speg.) Britton & Rose
    • Echinopsis bonnieae(Halda, Hogan & Janeba) Halda & Malina
    • Lobivia bonnieaeHalda, Hogan & Janeba
    • Lobivia famatinensis var. aurantiacaBackeb., no Latin descr.
    • Lobivia famatinensis var. cinnabarinaBackeb., no Latin descr.
    • Lobivia otukaeY.Itô
    • Lobivia otukae var. cinnabarinaY.Itô
    • Lobivia otukae var. croceanthaY.Itô
    • Reicheocactus bonnieae(Halda, Hogan & Janeba) Schlumpb.
    • Reicheocactus pseudoreicheanusBackeb.

Reicheocactus is a monotypic genus of cactus in the family Cactaceae, native to north western Argentina. It has only one known species, Reicheocactus famatimensis. [3]

Contents

Description

Reicheocactus famatinensis usually grows solitary and only occasionally forms cushions. The spherical to short cylindrical shoots reach heights of 3 to 7 cm (1.2 to 2.8 in) with diameters of 2.5 to 6 cm (0.98 to 2.36 in). The shoot apex is strongly sunken. There are 24 to 30 low ribs, which are divided into cusps. The brownish areoles on them are elongated. Central spines are not formed. The seven to nine whitish to yellowish marginal spines have a darker base. They are curved, rest on the surface of the shoot and are up to 0.3 cm (0.12 in) long. The short, funnel-shaped, yellow to orange flowers are 3 to 3.5 cm (1.2 to 1.4 in) long. [4]

It is usually solitary or slowly clumping and slow growing. The stems are small flattened-roundish to cylindrical with very short spidery-pectinate spines and egg-yellow flowers. [5]

Taxonomy

The genus Reicheocactus was published in Cactaceae (Berlin) 1941(2) on page 76 (published in 1942), and the species was published in Cactaceae Syst. Init. vol.28 on page 30 in 2012. [3]

It was once thought to be a synonym of Rebutia , [6] and commonly found in cactus nurseries as Lobivia famatimensis. [7]

The genus name of Reicheocactus is in honour of Karl Friedrich Reiche (1860-1929), who was a German botanist who worked as a university professor in Chile and Mexico. [8] The Latin specific epithet of famatimensis is derived from Sierra de Famatina, a mountain range and massif in the Andes of the Argentine province of La Rioja.

Distribution

The species grows at elevations of 1,000 to 3,000 m (3,300 to 9,800 ft) meters above sea level. It is found in high altitude grasslands on rocky soils. The species is not common or abundant, however it is difficult to see because of its small size. The major threat for the species is over collection (by plant collectors). The potential development of mining in its natural habitat could affect the populations of the species in the near future. [5]

Related Research Articles

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References

  1. ↑ "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. 2010-09-22. Retrieved 2023-10-02.
  2. ↑ "Reicheocactus famatimensis (Speg.) Schlumpb." Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 2023-10-16.
  3. 1 2 "Reicheocactus Backeb. | Plants of the World Online | Kew Science". Plants of the World Online. Retrieved 25 September 2022.
  4. ↑ Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 228. ISBN   3-8001-4573-1.
  5. 1 2 "Lobivia famatimensis". www.llifle.com. Retrieved 25 September 2022.
  6. ↑ "List of genera in family Cactaceae", Vascular Plant Families and Genera, Royal Botanic Gardens, Kew , retrieved 2013-03-10
  7. ↑ "Lobivia famatimensis crest". Planet Desert. Retrieved 25 September 2022.
  8. ↑ Burkhardt, Lotte (2022). Eine Enzyklopädie zu eponymischen Pflanzennamen [Encyclopedia of eponymic plant names](pdf) (in German). Berlin: Botanic Garden and Botanical Museum, Freie Universität Berlin. doi:10.3372/epolist2022. ISBN   978-3-946292-41-8. S2CID   246307410 . Retrieved January 27, 2022.

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