Pomatocalpa

Pomatocalpa, commonly known as bladder orchids,[2] or 鹿角兰属 (lu jiao lan shu),[3] is a genus of about twenty five species from the orchid family, Orchidaceae. Plants in this genus are epiphytes or lithophytes with thick, leathery leaves and a large number of small flowers with a three-lobed labellum. There are about twenty five species found from tropical and subtropical Asia to the south-west Pacific.

Pomatocalpa
Pomatocalpa undulatum
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Monocots
Order:
Asparagales
Family:
Orchidaceae
Subfamily:
Epidendroideae
Tribe:
Vandeae
Subtribe:
Aeridinae
Genus:
Pomatocalpa

Breda[1]

Description

Orchids in the genus Pomatocalpa are monopodial epiphytic or lithophytic herbs with long, thick roots attached to the substrate, with fibrous stems and long-lasting leaves arranged in two rows with their bases obscuring the stems. A large number of relatively small flowers are arranged on a panicle or raceme and with sepals and petals that are similar to each other and a labellum that has three lobes.[2][3][4][5]

Taxonomy and naming

The genus Pomatocalpa was first formally described in 1829 by Breda in Genera et Species Orchidearum et Asclepiadearum. The type species is Pomatocalpa spicatum.[6] The name Pomatocalpa is derived from the Ancient Greek words pomatos meaning "cover", "lid", "operculum" or "gill-cover"[7]:183 and kalpe meaning "vessel for drawing water", "pitcher" or "urn",[7]:627 referring to the deeply pouched labellum.[4]

Species list: The following is a list of species accepted by the World Checklist of Selected Plant Families as of December 2018:[1]

  • Pomatocalpa angustifolium Seidenf. - Thailand, Vietnam
  • Pomatocalpa arachnanthe (Ridl.) J.J.Sm. - Malaysia
  • Pomatocalpa armigerum (King & Pantl.) Tang & F.T.Wang - Assam, Bhutan
  • Pomatocalpa bambusarum (King & Pantl.) Garay - Assam, Bhutan
  • Pomatocalpa bhutanicum N.P.Balakr. - Bhutan
  • Pomatocalpa bicolor (Lindl.) J.J.Sm. - Philippines
  • Pomatocalpa decipiens (Lindl.) J.J.Sm. - India, Bangladesh, Sri Lanka
  • Pomatocalpa diffusum Breda - Thailand, Malaysia, Indonesia, Philippines
  • Pomatocalpa floresanum J.J.Sm. - Flores
  • Pomatocalpa fuscum (Lindl.) J.J.Sm. - Malaysia, Borneo, Philippines
  • Pomatocalpa grande Seidenf. - Vietnam
  • Pomatocalpa incurvum (J.J.Sm.) J.J.Sm. - New Guinea, Solomons
  • Pomatocalpa kunstleri (Hook.f.) J.J.Sm. - Thailand, Malaysia, Indonesia, Philippines
  • Pomatocalpa leucanthum (Schltr.) Schltr. - New Guinea
  • Pomatocalpa linearipetalum J.J.Sm. - Seram
  • Pomatocalpa macphersonii (F.Muell.) T.E.Hunt - New Guinea, Queensland
  • Pomatocalpa maculosum (Lindl.) J.J.Sm. - widespread from Sri Lanka and Bhutan to Java and the Philippines
    • Pomatocalpa maculosum subsp. andamanicum (Hook.f.) Watthana
    • Pomatocalpa maculosum subsp. maculosum
  • Pomatocalpa marsupiale (Kraenzl.) J.J.Sm. - Queensland, Maluku, Sulawesi, New Guinea, Solomons, Vanuatu
  • Pomatocalpa parvum (Ridl.) J.J.Sm. - Pahang
  • Pomatocalpa simalurense J.J.Sm . - Simeuluë
  • Pomatocalpa sphaetophorum (Schltr.) J.J.Sm. - Borneo
  • Pomatocalpa spicatum Breda, Kuhl & Hasselt - Hainan, Assam, Bhutan, Andaman & Nicobar Islands, Indochina, Malaysia, Indonesia, Philippines
  • Pomatocalpa tonkinense (Gagnep.) Seidenf. - Vietnam, Laos
  • Pomatocalpa truncatum (J.J.Sm.) J.J.Sm. - Borneo
  • Pomatocalpa undulatum (Lindl.) J.J.Sm - Assam, Bangladesh, Taiwan
    • Pomatocalpa undulatum subsp. acuminatum (Rolfe) Watthana
    • Pomatocalpa undulatum subsp. undulatum

Distribution

Species in the genus Pomatocalpa are found from tropical and substropical Asia to the southwest Pacific.[1]

See also
  • List of Orchidaceae genera

References
  1. "Pomatocalpa". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
  2. Jones, David L. (2006). A complete guide to native orchids of Australia including the island territories. Frenchs Forest, N.S.W.: New Holland. p. 442. ISBN 978-1877069123.
  3. Chen, Xinqi; Wood, Jeffrey J. "Pomatocalpa". Flora of China. Retrieved 28 December 2018.
  4. "Pomalocalpa". Trin keys. Retrieved 30 December 2018.
  5. Wattana, Santi (2007). "The genus Pomatocalpa (Orchidaceae) A taxonomic monograph". Harvard Papers in Botany. 11 (2): 207–256. doi:10.3100/1043-4534(2007)11[207:TGPOAT]2.0.CO;2. JSTOR 41761857.
  6. "Pomatocalpa". APNI. Retrieved 1 January 2019.
  7. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press.
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