Английская Википедия:Caladenia longicauda subsp. albella
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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.
Description
Caladenia longicauda subsp. albella is a terrestrial, perennial, deciduous, herb with an underground tuber and a single hairy leaf, Шаблон:Convert long and Шаблон:Convert wide. Up to four mostly white flowers Шаблон:Convert long and Шаблон:Convert wide are borne on a spike Шаблон:Convert tall. Unlike the pleasantly-scented flowers in other subspecies of Caladenia longicauda, the flowers of this subspecies have an acrid odour. The dorsal sepal is erect, the lateral sepals are Шаблон:Convert wide and the petals are Шаблон:Convert wide. The labellum is white, Шаблон:Convert long with narrow teeth Шаблон:Convert long and the column is Шаблон:Convert and Шаблон:Convert wide. The relatively narrow sepals and petals and the small labellum, together with the distribution of this subspecies, distinguish it from others in the same species. Flowering occurs from August to mid-September.[1][2][3]
Taxonomy and naming
Caladenia longicauda was first formally described by John Lindley in 1840 and the description was published in A Sketch of the Vegetation of the Swan River Colony.[4] In 2001 Stephen Hopper and Andrew Brown described eleven subspecies, including subspecies albella and the descriptions were published in Nuytsia.[5] The subspecies name (albella) is a diminutive of the Latin word albus meaning “white", hence "small white"[6] referring to the flowers of this orchid.[2]
Distribution and habitat
The small-lipped white spider orchid is common in the area between Eneabba and Gingin, where it grows in seasonal swamps, near creeks and on lake edges in the Geraldton Sandplains and Swan Coastal Plain biogeographic regions.[1][2][3][7]
Conservation
Caladenia longicauda subsp. albella is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[7]
References
- Английская Википедия
- Caladenia
- Endemic orchids of Australia
- Orchids of Western Australia
- Plants described in 2001
- Taxa named by Stephen Hopper
- Taxa named by Andrew Phillip Brown
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