Biology:Cleisocentron

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Cleisocentron is a genus of flowering plants from the orchid family, Orchidaceae.[1] It has a disjunct distribution, known from the Himalayas, Vietnam, China and Borneo.

Description

Illustration of Cleisocentron pallens

The species of this genus are tropical epiphytes with a pendent or erect habit. The leaves may be terete or broad. Both types of leaves may occur on the same specimen, as some species exhibit leaf polymorphy.[2] Three species have blue flowers,[3] but other colours, such as pink and white also occur.

Cytology

The diploid chromosome count is 2n = 38.[4]

Etymology

The generic name is derived from the Greek kleistos meaning closed,[5] as well as kentron meaning spur.[3][5] The name relates to the morphology of the spurred labellum.[2]

Ecology

Pollination

There have been reports of pollination or visitation by ants, which was observed during field expeditions in Borneo.[6][7] Alternatively, there have been speculations, that the nectariferous flowers are pollinated by butterflies.[3]

Taxonomy

It was published by Paul Johannes Brühl in 1926[8][9] with Cleisocentron trichromum (Rchb. f.) Brühl as the type species.[8]

Species

Eight species are currently recognized:[10]

  1. Cleisocentron abasii Cavestro - Sabah
  2. Cleisocentron gokusingii J.J.Wood & A.L.Lamb - Sabah
  3. Cleisocentron kinabaluense Metusala & J.J.Wood - Sabah
  4. Cleisocentron klossii (Ridl.) Garay - Vietnam
  5. Cleisocentron malipoense (Z.J.Liu & L.J.Chen) R.Rice - Malipo, Yunnan, China [11]
  6. Cleisocentron merrillianum (Ames) Christenson - Sabah
  7. Cleisocentron neglectum M.J.Mathew & J.Mathew - India (Karnataka) [12]
  8. Cleisocentron pallens (Cathcart ex Lindl.) N.Pearce & P.J.Cribb - eastern Himalayas (Sikkim, Bhutan, Assam, India)

Formerly included species

  • Cleisocentron collettianum (King & Pantl.) Garay is now considered a synonym of Robiquetia pachyphylla (Rchb.f.) Garay.[13]

Horticulture

Cleisocentron is rarely found in cultivation.[5][2] However, they are easy to cultivate.[5] Numerous intergeneric hybrids with Cleisocentron have been described.[9]

See also

References

  1. ↑ Brühl, Paul Johannes. 1926. Guide to the Orchids of Sikkim 136
  2. ↑ 2.0 2.1 2.2 Pridgeon, A., Cribb, P., Chase, M., & Rasmussen, F. (2014). "Genera Orchidacearum Volume 6: Epidendroideae (Part 3)." pp. 158-161 OUP Oxford.
  3. ↑ 3.0 3.1 3.2 Chase, M., Christenhusz, M., Mirenda, T., & Ivy Press (2017). "The Book of Orchids: A Life-Size Guide to Six Hundred Species from Around the World." p. 555. University of Chicago Press.
  4. ↑ Genera Orchidacearum: Volume 1: Apostasioideae and Cypripedioideae. p. 72. (1999). Vereinigtes Königreich: OUP Oxford.
  5. ↑ 5.0 5.1 5.2 5.3 Teoh, E.S. (2021). Cleisocentron Bruhl.. In: Orchid Species from Himalaya and Southeast Asia Vol. 1 (A - E). pp 199–201. Springer, Cham. https://doi.org/10.1007/978-3-030-58872-4_30
  6. ↑ Pugh-Jones, S. (2021, May 29). Cleisocentron gokusingii – 365 days of orchids – day 1616. WSBEorchids. Retrieved December 13, 2022, from https://wsbeorchids.org/2021/cleisocentron-gokusingii-365-days-of-orchids-day-1616/
  7. ↑ Robinson, J. (2022, March 9). PLANTS BEHAVING BADLY. KPBS Public Media. Retrieved December 13, 2022, from https://www.kpbs.org/news/2017/may/02/plants-behaving-badly/
  8. ↑ 8.0 8.1 Missouri Botanical Garden. (n.d.-e). Cleisocentron Brühl. Tropicos. Retrieved January 4, 2025, from https://www.tropicos.org/name/40009971
  9. ↑ 9.0 9.1 Cleisocentron Brühl. (n.d.). International Plant Names Index. Retrieved January 4, 2025, from https://www.ipni.org/n/29059-1
  10. ↑ "World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew". http://apps.kew.org/wcsp/namedetail.do?name_id=41757. 
  11. ↑ "Cleisocentron malipoense (Z.J.Liu & L.J.Chen) R.Rice | Plants of the World Online | Kew Science". https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77187774-1. 
  12. ↑ "Cleisocentron neglectum M.J.Mathew & J.Mathew | Plants of the World Online | Kew Science". https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77210713-1. 
  13. ↑ "Robiquetia pachyphylla (Rchb.f.) Garay" (in en). Royal Botanic Gardens, Kew. http://www.plantsoftheworldonline.org/taxon/655737-1. Retrieved 21 November 2022. 


  • Data related to Cleisocentron at Wikispecies

Wikidata ☰ Q1319621 entry



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