Rebutia minuscula

Rebutia minuscula
Rebutia minuscula, typ.
Conservation status
Least Concern  (IUCN 3.1) [1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Order:	Caryophyllales
Family:	Cactaceae
Subfamily:	Cactoideae
Genus:	Rebutia
Species:	R. minuscula
Binomial name
Rebutia minuscula K.Schum. [2]
Synonyms [3]
List Echinocactus minusculus(K.Schum.) F.A.C.Weber Echinopsis minusculaRebut ex K.Schum. Eurebutia minuscula(K.Schum.) Vande Weghe Rebutia australisMottram & V.Gapon Rebutia callianthaBewer. Rebutia calliantha var. beryllioidesBuining & Donald Rebutia calliantha var. kariusiana(Wessner) Buining & Donald Rebutia calliantha var. krainziana(Kesselr.) Buining & Donald Rebutia carmineaBuining Rebutia chrysacanthaBackeb. Rebutia chrysacantha var. elegans(Backeb.) Backeb. Rebutia citricarpaFric Rebutia dasyphrissaWerderm. Rebutia gracilifloraBackeb. Rebutia grandifloraBackeb. Rebutia hyalacantha(Backeb.) Backeb. Rebutia kariusianaWessner Rebutia knuthianaBackeb. Rebutia krainzianaKesselr. Rebutia krainziana var.breviseta(Backeb.) Donald Rebutia krainziana var. hyalacantha(Backeb.) Buchheim Rebutia marsoneriWerderm. Rebutia minuscula subsp. grandiflora(Backeb.) Donald Rebutia minuscula var. grandiflora(Backeb.) Krainz Rebutia minuscula f. kariusiana(Wessner) Donald Rebutia minuscula f. knuthiana(Backeb.) Buining & Donald Rebutia minuscula var. marsoneri(Werderm.) Eb.Scholz Rebutia minuscula subsp. violaciflora(Backeb.) Donald Rebutia minuscula subsp. wessneriana(Bewer.) Muruaga Rebutia senilisBackeb. Rebutia senilis var. aurescensBackeb. Rebutia senilis var. brevisetaBackeb. Rebutia senilis var. elegansBackeb. ex Krainz Rebutia senilis var. hyalacanthaBackeb. Rebutia senilis var. iselinianaKrainz Rebutia senilis f. iseliniana(Krainz) Buining & Donald Rebutia senilis var. kesselringianaBewer. Rebutia senilis f. lilacinorosea(Backeb.) Buining & Donald Rebutia senilis var. lilacinoroseaBackeb. Rebutia senilis f. schieliana(Bewer.) Donald Rebutia senilis var. schielianaBewer. Rebutia senilis var. sieperdaiana(Buining) Backeb. Rebutia senilis var. stuemeriBackeb. Rebutia senilis f. stuemeri(Backeb.) Buining & Donald Rebutia senilis var. stuemerianaBackeb. Rebutia senilis var. xanthocarpa(Backeb.) W.T.Marshall Rebutia sieperdaianaBuining Rebutia stuemeriana(Backeb.) Backeb. Rebutia violacifloraBackeb. Rebutia violaciflora var. carminea(Buining) Donald Rebutia violaciflora var. knuthiana(Backeb.) Donald Rebutia wessnerianaBewer. Rebutia wessneriana var. calliantha(Bewer.) Krainz Rebutia wessneriana var. krainziana(Kesselr.) Buining & Donald Rebutia xanthocarpaBackeb. Rebutia xanthocarpa var. citricarpaFric ex Backeb. Rebutia xanthocarpa f. citricarpa(Fric ex Backeb.) Buining & Donald Rebutia xanthocarpa var. coerulescensBackeb. Rebutia xanthocarpa f. dasyphrissa(Werderm.) Buining & Donald Rebutia xanthocarpa var. dasyphrissa(Werderm.) Backeb. Rebutia xanthocarpa var. elegansBackeb. Rebutia xanthocarpa f. graciliflora(Backeb.) Donald Rebutia xanthocarpa var. luteiroseaBackeb. Rebutia xanthocarpa f. salmonea(Backeb.) Buining & Donald Rebutia xanthocarpa var. salmoneaBackeb. Rebutia xanthocarpa var. violaciflora(Backeb.) Backeb.

Rebutia minuscula is a species of cactus from South America found in northern Argentina and Bolivia. ^{[2] [4]} It is the type species of the genus Rebutia . ^[5] As its synonym Rebutia senilis it has gained the Royal Horticultural Society's Award of Garden Merit. ^[6] Its cultivars 'Krainziana', 'Marsoneri' and 'Violaciflora' are also listed as having gained the Award of Garden Merit. ^[6]

The status of the species of Rebutia is currently uncertain; indeed the genus as defined by Anderson (2001) has been shown to be polyphyletic. ^[7] Anderson describes R. minuscula as consisting of globe-shaped stems with a diameter of up to 5 cm (2 in), forming large clusters. The stem has 16–20 ribs with small but distinct tubercles ("bumps"). Each areole produces 25–30 fine whitish spines, 1–3 mm (0.0–0.1 in) long. As in other species of Rebutia, the flowers are not produced at the top of the stem, but from around the base. They are red, up to 4 cm (1.6 in) long. ^[2] Other authorities include synonyms such as R. marsoneri, with yellow to orange flowers, in R. minuscula, giving the species a much broader range of flower colour. ^{[8] [9]}

Subtaxa

The following varieties are accepted: ^[3]

• Rebutia minuscula var. minuscula
• Rebutia minuscula var. wessneriana(Bewer.) Eb.Scholz

Synonyms

Since the early 1990s, more than two dozen additional Rebutia species, previously considered independent, have been included in this species. ^[10] These include the following: ^{[11] [12]}

• Rebutia chrysacantha ^{[10] [13]}
• Rebutia iseliniana ^[14]
• Rebutia senilis ^[10]
• Rebutia stuemeriana ^[13]
• Rebutia marsonerii ^[11]
• Rebutia krainziana ^[13]
• Rebutia calliantha ^[13]
• Rebutia kesselringiana ^[14]
• Rebutia ionantha ^[13]
• Rebutia kariusiana ^[10]
• Rebutia grandiflora ^{[15] : 220}
• Rebutia knuthiana ^{[11] [14]}
• Rebutia carminea ^[13]
• Rebutia violaciflora ^{[10] [14]}
• Rebutia wessneriana ^[11]
• Rebutia xanthocarpa ^[13]

• 
  Rebutia chrysacantha
• 
  Rebutia senilis v.stuemeri P249
• 
  Rebutia senilis v.iseliana
• 
  Rebutia marsoneri
• 
  Rebutia krainziana
• 
  Rebutia krainziana v.albiflora
• 
  Rebutia grandiflora
• 
  Rebutia kariusiana
• 
  Rebutia ionantha
• 
  Rebutia violaciflora
• 
  Rebutia wessneriana
• 
  Rebutia xanthocarpa

References

1. "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. 2010-09-22. Retrieved 2024-02-12.
2. Anderson, Edward f. (2001), The Cactus Family, Pentland, Oregon: Timber Press, ISBN   978-0-88192-498-5 , p. 605
3. "Rebutia minuscula K.Schum". Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 19 May 2021.
4. Fearn, Brian (1981). The Genus Rebutia. Abbey Brook Cactus Nursery. p. 4.
5. Anderson 2001, p. 599
6. "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. December 2020. p. 91. Retrieved 19 May 2021.
7. Ritz, Christiane M.; Martins, Ludwig; Mecklenburg, Rainer; Goremykin, Vadim & Hellwig, Frank H. (2007), "The molecular phylogeny of Rebutia (Cactaceae) and its allies demonstrates the influence of paleogeography on the evolution of South American mountain cacti", American Journal of Botany, 94: 1321–1332, doi:10.3732/ajb.94.8.1321, PMID   21636499
8. Anderson 2001, p. 604
9. Sheader, Martin (2012), "Show Reports: Summer Show South", The Alpine Gardener, 80 (1): 88–91
10. Compiled by David Hunt. CITES Cactaceae Checklist. (List part II: Accepted taxa). (Second edition). — London, Honorary Research Fellow, Royal Botanic Gardens Kew: 1992. 1999. — 316 s. — s.265-266
11. Korotkova, N.et al. 2021, Rebutia minuscula, in Cactaceae at Caryophyllales.org. A global synthesis of species diversity in the angiosperm order Caryophyllales. Published online. Accessed: 2023 Sep 17.
12. International Plant Names Index . 2021. Rebutia minuscula Published online. Accessed: 2023 Sep 17.
13. Rebutia minuscula . Tax navigation on the website wikispecies.
14. Hassler, M. 2021. Rebutia minuscula World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2021. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2023 Sep 17.
15. Rod & Ken Preston-Mafham, «Kakteen Atlas», Eugen Ulmer Verlag, Stuttgart, 1992, 1995, ISBN 3-8001-6582-1.