Английская Википедия:Caladenia exstans
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Caladenia exstans, commonly known as the pointing 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 one or two green, yellow and red flowers with a labellum which does not curl downwards but "points" forward.
Description
Caladenia exstans is a terrestrial, perennial, deciduous, herb with an underground tuber and which has a single erect, hairy leaf, Шаблон:Convert long and Шаблон:Convert wide. One or two green, yellow and red flowers Шаблон:Convert long and Шаблон:Convert wide are borne on a stalk Шаблон:Convert high. The dorsal sepal is erect, Шаблон:Convert long and about Шаблон:Convert wide at the base. The lateral sepals are Шаблон:Convert long, Шаблон:Convert wide at the base, closely parallel to each other and curve forward and upwards. The sepals have thin, yellowish glandular tips. The petals are Шаблон:Convert long, about Шаблон:Convert wide at their bases and curve backwards. The labellum is Шаблон:Convert long, Шаблон:Convert wide and delicately hinged. It is greenish-yellow with a dark reddish-purple tip which is not curled under but points forward. The edges of the labellum are smooth and there are four or more rows of deep red calli along its centre. Flowering occurs from September to early November.[1][2][3]
The cryptic colouration of this orchid and the relatively small flower on a long stem make this orchid difficult to find but it is the only greenish spider orchid with a smooth-edged labellum occurring east of Esperance.[4]
Taxonomy and naming
Caladenia exstans was first described by Stephen Hopper and Andrew Brown in 2001 from a specimen collected near Esperance. The description was published in Nuytsia.[5] The specific epithet (exstans) is a Latin word meaning "projecting" referring to the pointed labellum.[2]
Distribution and habitat
Pointing spider orchid is found between Esperance and Israelite Bay in the Esperance Plains biogeographic region where it grows in swamp yate forest and in shallow soil on and near granite outcrops.[1][2][3][4][6]
Conservation
Caladenia exstans is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[6]
References
External links
- Английская Википедия
- Страницы с неработающими файловыми ссылками
- Caladenia
- Orchids of Western Australia
- Endemic orchids of Australia
- Plants described in 2001
- Endemic flora of Western Australia
- Taxa named by Stephen Hopper
- Taxa named by Andrew Phillip Brown
- Страницы, где используется шаблон "Навигационная таблица/Телепорт"
- Страницы с телепортом
- Википедия
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- Статья из Английской Википедии
