Английская Википедия:Caladenia bicalliata subsp. cleistogama
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Caladenia bicalliata subsp. cleistogama, commonly known as the shy limestone spider orchid or sandhill spider orchid, is a plant in the orchid family Orchidaceae and is native to the south-west of Western Australia. It has a single erect, hairy leaf and one or two cream-coloured flowers which are smaller than those in subspecies bacalliata .
Description
Caladenia bicalliata subsp. cleistogama is a terrestrial, perennial, deciduous, herb with an underground tuber and which occurs singly or in small clumps. It has a single erect, very hairy, linear to lance-shaped leaf, Шаблон:Convert long and Шаблон:Convert wide. The inflorescence is a raceme, Шаблон:Convert high with one or two flowers, each flower about Шаблон:Convert long and Шаблон:Convert wide. The dorsal sepal abruptly narrows about one-third of its length from the base. The lateral sepals and petals are much shorter than those of subspecies bicalliata, lack reddish-brown tips and are a paler greenish-cream colour. The labellum is white with red spots and a serrated edge and has two rows of white-tipped calli along its centre. Flowering occurs from August to early September, however the flowers only rarely open fully.[1][2]
Taxonomy and naming
Caladenia bicalliata was first formally described by Richard Rogers in 1909.[3] In 2001 Stephen Hopper and Andrew Brown described two subspecies, including subspecies cleistogama and the description of the two subspecies was published in Nuytsia.[4] The specific epithet (cleistogama) is from the Latin cleistogamus (fertilised within the unopened flower), referring to the self-pollinating habit of this subspecies.[1]
Distribution and habitat
Shy limestone spider orchid occurs in a narrow coastal strip, growing on consolidated sand dunes between William Bay National Park and Cape Arid National Park in the Esperance Plains and Warren biogeographic regions.[5][6]
Conservation
Caladenia bicalliata subsp. cleistogama is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[5]
References
- Английская Википедия
- Caladenia
- Endemic orchids of Australia
- Orchids of South Australia
- Orchids of Western Australia
- Plants described in 2001
- Taxa named by Stephen Hopper
- Taxa named by Andrew Phillip Brown
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