- Source: Pomatocalpa
Pomatocalpa, commonly known as bladder orchids, or 鹿角兰属 (lu jiao lan shu), 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.
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.
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. The name Pomatocalpa is derived from the Ancient Greek words pomatos meaning "cover", "lid", "operculum" or "gill-cover": 183 and kalpe meaning "vessel for drawing water", "pitcher" or "urn",: 627 referring to the deeply pouched labellum.
Species list:
The following is a list of species accepted by the World Checklist of Selected Plant Families as of December 2018:
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.
See also
List of Orchidaceae genera