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Esperance King Spider Orchid

Caladenia decora Hopper & A. P. Br.

Caladenia decora

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Caladenia decora, commonly known as the Esperance king spider orchid is a species of orchid endemic to the south-west of Western Australia. It has a single hairy leaf and up to three red, yellow and green flowers. It is a variable species, similar to the king spider orchid (C. pectinata) and sometimes hybridises with other species so that it can be difficult to recognise, but is one of the largest spider orchids found in Western Australia.

Caladenia decora labellum detail

Description

Caladenia decora is a terrestrial, perennial, deciduous, herb with an underground tuber and which grows as a solitary plant or in small clumps. It has a single, erect, linear, hairy leaf, 9–22 cm (4–9 in) long and 6–10 mm (0.2–0.4 in) wide. The leaf is pale green and has purple-red blotches near its base.[2][3][4][5]

Up to three red, yellow and green flowers are borne on a stalk 25–50 cm (10–20 in) tall. The flowers are 6–15 mm (0.2–0.6 in) long and 5–10 mm (0.2–0.4 in) wide, making them one of the largest among Western Australian spider orchids. The bases of the sepals and petals are linear to lance-shaped and held stiffly for about one-third, then suddenly narrow. The dorsal sepal is erect, linear to lance-shaped, 4.5–7 cm (2–3 in) long and 3–6 mm (0.1–0.2 in) wide at the base with a yellow-brown glandular tip up to 25 mm (1 in) long. The lateral sepals are spreading and downcurved, 5–8 cm (2–3 in) long and 3.5–8 mm (0.1–0.3 in) wide at the base with a tip similar to the one on the dorsal sepal. The petals are 4–6 cm (2–2 in) long and 3.5–5 mm (0.1–0.2 in) wide at the base, slightly ascending then slightly curved downwards and sometime lack glandular tips. The labellum is dark pink with red stripes and ends in a dark tip. It is linear to heart-shaped, 20–28 mm (0.8–1 in) long and 13–20 mm (0.5–0.8 in) wide and curves downward at the front. The sides curve upwards and have a fringe of narrow teeth up to 9 mm (0.4 in) long but suddenly decreasing in length about half-way towards the tip of the labellum. There are four rows of pale maroon, golf stick-shaped calli in the centre of the labellum for at least three-quarters of its length, but decreasing in size towards its tip. Flowering occurs from mid-August to October.[2][3][4]

This species is similar to the similarly-sized Caladenia pectinata but is more brightly coloured, often has gland-tipped petals and has a more easterly distribution. Hybrids with Caladenia longicauda subsp. crassa are common.[2][3][5]

Taxonomy and naming

Caladenia decora was first formally described by Stephen Hopper and Andrew Brown in 2001 from a specimen collected by Hopper near the Jerdacuttup River north-east of Hopetoun. The description was published in Nuytsia.[1] The specific epithet (decora) is a Latin word meaning "fitting", "proper" or "beautiful".[6]

Distribution and habitat

The Esperance king spider orchid is found near the coast between Bremer Bay and Cape Arid in the Esperance Plains and Mallee biogeographic regions where it usually grows in shrubland and woodlands in winter-wet areas but sometimes also near granite outcrops.[2][3][7]

Conservation

Caladenia decora is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[7]

References

  1. ^ a b "Caladenia decora". APNI. Retrieved 12 January 2017.
  2. ^ a b c d Brown, Andrew; Dixon, Kingsley; French, Christopher; Brockman, Garry (2013). Field guide to the orchids of Western Australia : the definitive guide to the native orchids of Western Australia. Simon Nevill Publications. p. 100. ISBN 9780980348149.
  3. ^ a b c d Hoffman, Noel; Brown, Andrew (2011). Orchids of South-West Australia (3rd ed.). Gooseberry Hill: Noel Hoffman. p. 135. ISBN 9780646562322.
  4. ^ a b Hopper, Stephen; Brown, Andrew Philip (2001). "Contributions to Western Australian orchidology: 2. New taxa and circumscriptions in Caledenia". Nuytsia. 14: 65–67.
  5. ^ a b Archer, William. "Caladenia decora". Esperance Wildflowers. Retrieved 12 January 2017.
  6. ^ Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 577.
  7. ^ a b "Caladenia decora". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
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Caladenia decora: Brief Summary

provided by wikipedia EN

Caladenia decora, commonly known as the Esperance king spider orchid is a species of orchid endemic to the south-west of Western Australia. It has a single hairy leaf and up to three red, yellow and green flowers. It is a variable species, similar to the king spider orchid (C. pectinata) and sometimes hybridises with other species so that it can be difficult to recognise, but is one of the largest spider orchids found in Western Australia.

Caladenia decora labellum detail
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Caladenia decora ( Portuguese )

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Caladenia decora é uma espécie de orquídea geófita, família Orchidaceae, do sudoeste da Austrália,[1] onde cresce em grupos esparsos ou ocasionalmente grandes colônias, em bosques, ou locais de vegetação arbustiva, charnecas, e afloramentos de granito, em áreas de solo bem drenado mas ocasionalmente em áreas sazonalmente alagadiças.[2]

São plantas com uma única folha basal pubescente com marcas proeminentes púrpura perto da base, e uma inflorescência rija, fina e densamente pubescente, com uma ou poucas flores, que vagamente lembram uma aranha, muito estreitas, caudadas, e bem esparramadas, normalmente pendentes. Em conjunto formam grupo bem vistoso quando sua floração é estimulada por incêndios de verão.[2]

Pertence a um grupo de cerca de vinte espécies, tratadas por David Jones como Alliance Rusty Spider do gênero Arachnorchis, que distingue-se dos outros grupos de Caladenia por apresentar diferente tipo de pubescência nas folhas e inflorescências, por suas flores grandes, de sépalas e pétalas atenuadas, longas, com verrugas clavadas na extremidade; e labelo pendurado firmemente, com dentes marginais longos, estreitos com evidentes espessamentos apicais; e osmóforos especializados.[2]

Publicação e sinônimos

  • Caladenia decora Hopper & A.P.Br., Nuytsia 14: 65 (2001).

Sinônimos homotípicos:

  • Arachnorchis decora (Hopper & A.P.Br.) D.L.Jones & M.A.Clem., Orchadian 13: 451 (2002).
  • Calonemorchis decora (Hopper & A.P.Br.) Szlach. & Rutk., Richardiana 3: 94 (2003).

Referências

  1. R. Govaerts et al. World Checklist of Orchidaceae. The Board of Trustees of the Royal Botanic Gardens, Kew.«Published on the Internet» (em inglês). Consultada em 15 de janeiro 2013.
  2. a b c David L. Jones (2006). Arachnorchis in Native Orchids of Australia:50-97. Reed Natural History Australia (Publ.) ISBN 9781877069123

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Caladenia decora: Brief Summary ( Portuguese )

provided by wikipedia PT

Caladenia decora é uma espécie de orquídea geófita, família Orchidaceae, do sudoeste da Austrália, onde cresce em grupos esparsos ou ocasionalmente grandes colônias, em bosques, ou locais de vegetação arbustiva, charnecas, e afloramentos de granito, em áreas de solo bem drenado mas ocasionalmente em áreas sazonalmente alagadiças.

São plantas com uma única folha basal pubescente com marcas proeminentes púrpura perto da base, e uma inflorescência rija, fina e densamente pubescente, com uma ou poucas flores, que vagamente lembram uma aranha, muito estreitas, caudadas, e bem esparramadas, normalmente pendentes. Em conjunto formam grupo bem vistoso quando sua floração é estimulada por incêndios de verão.

Pertence a um grupo de cerca de vinte espécies, tratadas por David Jones como Alliance Rusty Spider do gênero Arachnorchis, que distingue-se dos outros grupos de Caladenia por apresentar diferente tipo de pubescência nas folhas e inflorescências, por suas flores grandes, de sépalas e pétalas atenuadas, longas, com verrugas clavadas na extremidade; e labelo pendurado firmemente, com dentes marginais longos, estreitos com evidentes espessamentos apicais; e osmóforos especializados.

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Caladenia decora ( Vietnamese )

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Caladenia decora là một loài thực vật có hoa trong họ Lan. Loài này được Hopper & A.P.Br. mô tả khoa học đầu tiên năm 2001.[1]

Chú thích

  1. ^ The Plant List (2010). Caladenia decora. Truy cập ngày 7 tháng 6 năm 2013.

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Caladenia decora: Brief Summary ( Vietnamese )

provided by wikipedia VI

Caladenia decora là một loài thực vật có hoa trong họ Lan. Loài này được Hopper & A.P.Br. mô tả khoa học đầu tiên năm 2001.

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Wikipedia tác giả và biên tập viên
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wikipedia VI