Cleisocentron

Cleisocentron is a genus of flowering plants from the orchid family, Orchidaceae.[3] It has a disjunct distribution, known from the Himalayas, Vietnam, China and Borneo.

Cleisocentron
Cleisocentron merrillianum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Epidendroideae
Tribe: Vandeae
Subtribe: Aeridinae
Genus: Cleisocentron
Brühl
Type species
Cleisocentron trichromum (syn of C. pallens)
(Rchb. f.) Brühl.
Synonyms[1][2]
  • Singchia Z.J.Liu & L.J.Chen

Description

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.[4] Three species have blue flowers,[5] but other colours, such as pink and white also occur.

Etymology

The generic name is derived from the Greek kleistos meaning closed,[6] as well as kentron meaning spur.[5][6] The name relates to the morphology of the spurred labellum.[4]

Ecology

Pollination

There have been reports of pollination or visitation by ants, which was observed during field expeditions in Borneo.[7][8] Alternatively, there have been speculations, that the nectariferous flowers are pollinated by butterflies.[5]

Species

Eight species are currently recognized:[9]

  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 [10]
  6. Cleisocentron merrillianum (Ames) Christenson - Sabah
  7. Cleisocentron neglectum M.J.Mathew & J.Mathew - India (Karnataka) [11]
  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.[12]

Horticulture

Cleisocentron is rarely found in cultivation.[6][4] However, they are easy to cultivate.[6]

See also

References
  1. "Cleisocentron". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
  2. WFO (2022): Cleisocentron Brühl. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000008534. Accessed on: 14 Dec 2022
  3. Brühl, Paul Johannes. 1926. Guide to the Orchids of Sikkim 136
  4. Pridgeon, A., Cribb, P., Chase, M., & Rasmussen, F. (2014). "Genera Orchidacearum Volume 6: Epidendroideae (Part 3)." pp. 158-161 OUP Oxford.
  5. 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.
  6. 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
  7. 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/
  8. 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/
  9. "World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew".
  10. "Cleisocentron malipoense (Z.J.Liu & L.J.Chen) R.Rice | Plants of the World Online | Kew Science".
  11. "Cleisocentron neglectum M.J.Mathew & J.Mathew | Plants of the World Online | Kew Science".
  12. "Robiquetia pachyphylla (Rchb.f.) Garay". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 21 November 2022.



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