Dipodium pictum

Dipodium pictum, commonly known as brittle climbing-orchid or climbing hyacinth-orchid,[4] is an orchid species that is native to Malesia (including Indonesia and New Guinea) and the Cape York Peninsula in Australia.[5]

Dipodium pictum
Illustration from Curtis's Botanical Magazine in 1904
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Monocots
Order:
Asparagales
Family:
Orchidaceae
Subfamily:
Epidendroideae
Tribe:
Cymbidieae
Genus:
Dipodium
Species:
D. pictum
Binomial name
Dipodium pictum

Description

Dipodium pictum is a slender vine with leaves that are arranged in a single plane These have overlapping bases and are about 30 to 40 cm long and 2 to 3 cm wide. The flowers are about 5 cm in diameter and have maroon spots.[5]

Taxonomy

The species was formally described in 1849 in The Journal of the Horticultural Society of London by English botanist John Lindley who gave it the name Wailesia picta.[6] It was transferred to the genus Dipodium by German botanist Heinrich Gustav Reichenbach in 1862.[2]

Dipodium pandanum, a species formally described by Frederick Manson Bailey in 1902, is treated as a synonym of Dipodium pictum in the Australian Plant Census.[3] However, the World Checklist of Selected Plant Families records it as a synonym of Dipodium scandens.[7] The type specimen for Dipodum pandanum was collected near Samarai in Papua New Guinea.[5]

Distribution

In Australia it is found within or on the edge of rainforest, often near watercourses, at altitudes ranging from 200 to 400 metres. Only four specimens have been recorded in Australia; from Iron Range National Park and a timber reserve in the McIlwraith Range on the Cape York Peninsula.[4]

Conservation

In Australia, the species is listed as "endangered" under the Commonwealth Environment Protection and Biodiversity Conservation Act as well as Queensland's Nature Conservation Act.[8]

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References
  1. "Dipodium pictum (Lindl.) Rchb.f." The Plant List version 1.1. Retrieved 29 January 2014.
  2. "Dipodium pictum (Lindl.) Rchb.f., Xenia Orchid. 2: 15 (1862)". World Checklist of Selected Plant Families. Retrieved 29 January 2014.
  3. "Dipodium pandanum F.M.Bailey". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government. Retrieved 31 January 2014.
  4. "Approved Conservation Advice for Dipodium pictum" (PDF). Threatened Species Scientific Committee. 2008. Retrieved 31 January 2014.
  5. Hyland, B. P. M.; Whiffin, T.; Zich, F. A.; et al. (Dec 2010). "Factsheet – Dipodium pictum". Australian Tropical Rainforest Plants (6.1, online version RFK 6.1 ed.). Cairns, Australia: Commonwealth Scientific and Industrial Research Organisation (CSIRO), through its Division of Plant Industry; the Centre for Australian National Biodiversity Research; the Australian Tropical Herbarium, James Cook University. Retrieved 29 January 2014.
  6. "Wailesia picta Lindl". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government. Retrieved 31 January 2014.
  7. "Dipodium pandanum F.M.Bailey". The Plant List version 1.1. Retrieved 31 January 2013.
  8. "Dipodium pictum". SPRAT Profile. Department of the Environment (Australia). Retrieved 31 January 2014.
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