Английская Википедия:Diuris porrifolia
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Diuris porrifolia, commonly called the small-flowered donkey orchid[1] is a species of orchid which is endemic to the south-west of Western Australia. It has two or three leaves and up to seven yellow flowers with brown or reddish markings. It is similar to the common donkey orchid (D. corymbosa) but its flowers are smaller and it has a more easterly distribution.
Description
Diuris porrifolia is a tuberous, perennial herb with two or three leaves Шаблон:Convert long and Шаблон:Convert wide. There are up to seven yellow flowers with brown or reddish markings, Шаблон:Convert long and wide on a flowering stem Шаблон:Convert high. The dorsal sepal is erect, Шаблон:Convert long and Шаблон:Convert wide. The lateral sepals point downwards, Шаблон:Convert long and about Шаблон:Convert wide. The petals are more or less erect, Шаблон:Convert long and Шаблон:Convert wide on a stalk Шаблон:Convert long. The middle lobe of the labellum is wedge-shaped with a central fold, Шаблон:Convert long and Шаблон:Convert wide and the side lobes are Шаблон:Convert long and Шаблон:Convert wide. Flowering occurs from late July to September.[1][2][3]
This species is similar to D. corymbosa but has smaller flowers and a more easterly distribution. It has also been confused with the recently described (2016) western wheatbelt donkey orchid (D. brachyscapa) which has larger flowers and a more westerly distribution.[2]
Taxonomy and naming
Diuris porrifolia was first formally described in 1840 by John Lindley and the description was published in A Sketch of the Vegetation of the Swan River Colony as an appendix to Edwards's Botanical Register.[4][5] The specific epithet (porrifolia) is derived from the Latin words porrum meaning "a leek"[6]Шаблон:Rp and folia meaning "leaves",[6]Шаблон:Rp referring to the shape of the leaves of this species.[2]
The Index Kewensis lists this name as a synonym of Diuris corymbosa.[7]
Distribution and habitat
The small-flowered donkey orchid occurs between Perth and Boyup Brook in the south-west of Western Australia, where it grows in woodland and forest.[1][2]
Conservation
Diuris porrifolia is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[8]
References
- Английская Википедия
- Diuris
- Endemic orchids of Australia
- Orchids of Western Australia
- Endemic flora of Western Australia
- Plants described in 1840
- Taxa named by John Lindley
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