Caladenia incensum

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Glistening spider orchid
Caladenia incensum.jpg
Caladenia incensum growing near Gunyidi
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Diurideae
Genus: Caladenia
Species:
C. incensum
Binomial name
Caladenia incensum
Synonyms [1]

Caladenia incensum, commonly known as the glistening spider orchid is a species of orchid endemic to the south-west of Western Australia. It has a single, hairy leaf and three glistening white flowers which have a red-striped labellum.

Endemism Ecological state of being unique to a defined geographic location or habitat

Endemism is the ecological state of a species being unique to a defined geographic location, such as an island, nation, country or other defined zone, or habitat type; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. The extreme opposite of endemism is cosmopolitan distribution. An alternative term for a species that is endemic is precinctive, which applies to species that are restricted to a defined geographical area.

Western Australia State in Australia

Western Australia is a state occupying the entire western third of Australia. It is bounded by the Indian Ocean to the north and west, and the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Australia is Australia's largest state, with a total land area of 2,529,875 square kilometres, and the second-largest country subdivision in the world, surpassed only by Russia's Sakha Republic. The state has about 2.6 million inhabitants – around 11 percent of the national total – of whom the vast majority live in the south-west corner, 79 per cent of the population living in the Perth area, leaving the remainder of the state sparsely populated.

Labellum (botany)

In botany, the labellum is the part of the flower of an orchid or Canna, or other less-known genera that serves to attract insects, which pollinate the flower, and acts as a landing platform for them.

Contents

labellum detail Caladenia incensum labellum.jpg
labellum detail

Description

Caladenia incensum is a terrestrial, perennial, deciduous, herb with an underground tuber and which sometimes forms large colonies. It has a single erect, hairy leaf, 40–110 mm (2–4 in) long and 4–6 mm (0.16–0.24 in) wide. Up to three glistening white flowers 90–150 mm (4–6 in) long and 70–130 mm (3–5 in) wide are borne on a stalk 120–200 mm (5–8 in) tall. The sepals and petals spread widely near their bases but have long, drooping thread-like tips. The dorsal sepal is erect, 65–130 mm (3–5 in) long and 3–6 mm (0.1–0.2 in) wide. The lateral sepals and petals are 50–130 mm (2–5 in) long and 3–6 mm (0.1–0.2 in) wide with the petals slightly narrower than the lateral sepals. The labellum is 11–16 mm (0.4–0.6 in) long and 10–13 mm (0.4–0.5 in) wide and white, with radiating red lines, spots and blotches. The sides of the labellum have short, curved teeth, the tip is turned downwards and there are two rows of broad, anvil-shaped, white calli along its centre. Flowering occurs from late June to September. [2] [3] [4]

Perennial plant Plant that lives for more than two years

A perennial plant or simply perennial is a plant that lives more than two years. Some sources cite perennial plants being plants that live more than three years. The term is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also widely used to distinguish plants with little or no woody growth from trees and shrubs, which are also technically perennials.

Deciduous Trees or shrubs that lose their leaves seasonally

In the fields of horticulture and botany, the term deciduous (/dɪˈsɪdʒuəs/) means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, after flowering; and to the shedding of ripe fruit.

Herbaceous plant Plant which has no persistent woody stem above ground

Herbaceous plants in botany, frequently shortened to herbs, are vascular plants that have no persistent woody stems above ground. Herb has other meanings in cooking, medicine, and other fields. Herbaceous plants are those plants that do not have woody stems, they include many perennials, and nearly all annuals and biennials, they include both forbs and graminoids.

Taxonomy and naming

The glistening spider orchid was first formally described in 2001 by Stephen Hopper and Andrew Phillip Brown from a specimen collected in the Chiddarcooping Hill Nature Reserve north of Westonia and given the name Caladenia incensa. The description was published in Nuytsia . [1] In order that the genus and species names were of the same gender, the name was changed to Caladenia incensum. [5] The specific epithet (incensum) is a Latin word meaning "resinous material that yields a fragrant odour or smoke when burned" [6] referring to the sharp, burning metal odour of this orchid. [3]

Stephen Donald Hopper AC FLS FTSE is a Western Australian botanist, graduated in Biology, specialising in conservation biology and vascular plants. He has written eight books, and has over 200 publications to his name. He was Director of Kings Park in Perth for seven years, and CEO of the Botanic Gardens and Parks Authority for five. He is currently Foundation Professor of Plant Conservation Biology at The University of Western Australia. He was Director of the Royal Botanic Gardens, Kew from 2006 to 2012.

Andrew Phillip Brown is a conservation biologist and taxonomist at the Western Australian Department of Environment and Conservation. He is also curator of Orchidaceae and Myoporaceae at the Western Australian Herbarium and a foundation member of the Australian Orchid Foundation and the Western Australia Native Orchid Study and Conservation Group. He is the author of more than 100 journal articles and seven books on the flora of Western Australia including a field guide to the eremophilas of that state.

Westonia, Western Australia Town in Western Australia

Westonia is a small town located in the Eastern Wheatbelt region of Western Australia, 10 kilometres (6 mi) north of the Great Eastern Highway. It is the main town in the Shire of Westonia.

The World Checklist of Selected Plant Families gives the name C. incensa but the Western Australian Herbarium lists this name as a spelling mistake. [7]

The World Checklist of Selected Plant Families is an "international collaborative programme that provides the latest peer reviewed and published opinions on the accepted scientific names and synonyms of selected plant families." Maintained by the Royal Botanic Gardens, Kew, it is available online, allowing searches for the names of families, genera and species, as well as the ability to create checklists.

The Western Australian Herbarium is the State Herbarium in Perth, Western Australia. It is part of the State government's Department of Parks and Wildlife, and has responsibility for the description and documentation of the flora of Western Australia.

Distribution and habitat

The glistening spider orchid occurs between Hyden and Nerren Nerren Station, north of the Murchison River in the Avon Wheatbelt, Coolgardie, Geraldton Sandplains, Mallee, Murchison and Yalgoo biogeographic regions where it grows under shrubs on and near granite outcrops. [2] [3] [4] [8]

Hyden, Western Australia Town in Western Australia

The town of Hyden is located 292 kilometres (181 mi) east-southeast of Perth, Western Australia in the Shire of Kondinin. Hyden is home to Wave Rock, Mulka's Cave and Hippos Yawn, all popular local tourist attractions.

Murchison River (Western Australia) river in Western Australia

The Murchison River is the second longest river in Western Australia. It flows for about 820 km (510 mi) from the southern edge of the Robinson Ranges to the Indian Ocean at Kalbarri. The Murchison-Yalgar-Hope river system is the longest river system in Western Australia. It has a mean annual flow of 208 gigalitres, although in 2006, the peak year on record since 1967, flow was 1,806 gigalitres.

Avon Wheatbelt Bioregion

The Avon Wheatbelt is an Australian bioregion in Western Australia and part of the larger Southwest Australia savanna ecoregion.

Conservation

Caladenia incensum is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife. [8]

Department of Parks and Wildlife (Western Australia) department of the Government of Western Australia

The Department of Parks and Wildlife (DPaW) was the department of the Government of Western Australia responsible for managing lands described in the Conservation and Land Management Act 1984 and implementing the state's conservation and environment legislation and regulations. The minister responsible for the department was the Minister for the Environment.

Related Research Articles

<i>Caladenia longicauda</i> species of plant

Caladenia longicauda is a species of plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It is distinguished by its large leaf and by its up to five large, white flowers which have drooping sepals and petals with long, thickish brown "tails".

<i>Caladenia longicauda <span style="font-style:normal;">subsp.</span> borealis</i> subspecies of plant

Caladenia longicauda subspecies borealis, commonly known as daddy-long-legs spider orchid is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to three mostly white flowers with long, drooping sepals and petals.

<i>Caladenia christineae</i> species of plant

Caladenia christineae, commonly known as Christine's spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single erect, hairy leaf and up to four small, white to cream-coloured flowers. It is distinguished from similar spider orchids by its small, odourless flowers with their stiffly held sepals and petals.

<i>Caladenia cruscula</i> species of plant

Caladenia cruscula, commonly known as the reclining spider orchid is a species of orchid endemic to a small area in the south-west of Western Australia. It has a single hairy leaf and a single cream-coloured flower with a long red fringe on the sides of its labellum.

Caladenia erythrochila, commonly known as the Lake Muir spider orchid, Lake Muir blood spider orchid, Harry's little red spider orchid and Lake Muir blood orchid is a species of orchid endemic to a small area in the southern corner of the south-west of Western Australia. It has a single, hairy leaf and long, wispy, thread-like sepals and petals. Most of the flower parts are blood red, although there are often white marks on the labellum.

<i>Caladenia excelsa</i> species of plant

Caladenia excelsa, commonly known as the giant spider orchid, is a species of orchid endemic to a small area in the south-west of Western Australia. It is a rare species with a single, hairy leaf and up to three cream-coloured to greenish-cream flowers with long, drooping sepals and petals. It is one of the tallest spider orchids in Western Australia and, with Caladenia splendens, has the largest flowers of any Western Australian orchid.

Caladenia granitora, commonly known as the granite spider orchid, is a species of orchid endemic to the south-west of Western Australia. It has a single, hairy leaf and one or two yellowish-cream, white and red flowers which have a white labellum with a red tip.

<i>Caladenia heberleana</i> species of plant

Caladenia heberleana, commonly known as Heberle's 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, white and pale yellow flowers which have a white, red-tipped labellum.

Caladenia hoffmanii, commonly known as Hoffman's spider orchid is a species of orchid endemic to the south-west of Western Australia. It has a single, hairy leaf and one or two, greenish-yellow, red and white flowers which have a greenish-yellow labellum with a red tip. It is distinguished from the Pingaring spider orchid by small differences in the labellum and more northerly distribution.

Caladenia longicauda subsp. albella, commonly known as the small-lipped white spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to four, mostly white flowers which have a pungent smell. It usually grows in seasonal swamps between Eneabba and Gingin.

<i>Caladenia longicauda <span style="font-style:normal;">subsp.</span> longicauda</i> subspecies of plant

Caladenia longicauda subsp. longicauda, commonly known as the white spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to four, mostly white flowers with long drooping, thread-like ends on the sepals and petals. It grows in woodland and forest.

<i>Caladenia microchila</i> species of plant

Caladenia microchila, commonly known as the western wispy spider orchid, is a species of orchid endemic to the south-west of Western Australia. It is relatively common orchid with a single erect, hairy leaf and up to three wispy white flowers with narrow lateral sepals and petals and a white labellum with red markings.

Caladenia nobilis, commonly known as the noble spider orchid, is a species of orchid endemic to the south-west of Western Australia. It has a single hairy leaf and one or two large white flowers with a red-marked labellum.

<i>Caladenia occidentalis</i> species of plant

Caladenia occidentalis, commonly known as the ruby spider orchid, is a species of orchid endemic to the south-west of Western Australia. It has a single erect, hairy leaf and one or two pinkish-red flowers with a white, red-striped labellum.

Caladenia pendens subsp. pendens, commonly known as the pendant spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to three relatively large, creamy-white flowers with long drooping petals and sepals and sometimes has a sickly-sweet scent.

<i>Caladenia pendens <span style="font-style:normal;">subsp.</span> talbotii</i> subspecies of plant

Caladenia pendens subsp. talbotii, commonly known as Talbot's spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and one or two white, red and yellow flowers with long drooping petals and sepals and sometimes has a citrus-like scent.

Caladenia pluvialis, commonly known as the Yuna spider orchid, is a species of orchid endemic to the south-west of Western Australia. It is a common spider orchid, especially after winter rains, occurring in a restricted area. It has a single hairy leaf and one or two creamy-coloured flowers. It was formerly included with Caladenia incensa.

<i>Caladenia speciosa</i> species of plant

Caladenia speciosa, commonly known as the sandplain white spider orchid, is a species of orchid endemic to the south-west of Western Australia. It has a single erect, hairy leaf and up to three relatively large white flowers tinged with pink and with a fringe of long teeth on the sides of the labellum.

Caladenia uliginosa subsp. candicans, commonly known as the northern darting spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to three yellowish-cream flowers which have a forward-projecting labellum lacking the red tip of subspecies uliginosa.

Caladenia wanosa, commonly known as the Kalbarri spider orchid, is a species of orchid endemic to the south-west of Western Australia. It has a single erect, hairy leaf and one or two cream-coloured flowers with red stripes. It is common but only in a restricted area of the state.

References

  1. 1 2 3 "Caladenia incensa". APNI. Retrieved 11 February 2017.
  2. 1 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. 105. ISBN   1877069124.
  3. 1 2 3 Brown, Andrew; Dundas, Pat; Dixon, Kingsley; Hopper, Stephen (2008). Orchids of Western Australia. Crawley, Western Australia: University of Western Australia Press. p. 63. ISBN   9780980296457.
  4. 1 2 Hoffman, Noel; Brown, Andrew (2011). Orchids of South-West Australia (3rd ed.). Gooseberry Hill: Noel Hoffman. p. 64. ISBN   9780646562322.
  5. ↑ "Caladenia incensa". FloraBase . Western Australian Government Department of Parks and Wildlife.
  6. ↑ Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 654.
  7. ↑ "Name Currency Caladenia incensa Hopper & A.P.Br". Western Australian Herbarium. Retrieved 7 February 2018.
  8. 1 2 "Caladenia incensum". FloraBase . Western Australian Government Department of Parks and Wildlife.
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