Английская Википедия:Genoplesium arrectum

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Genoplesium arrectum, commonly known as the erect midge orchid and as Corunastylis arrecta in Australia, is a small terrestrial orchid endemic to south-eastern Australia. It has a single thin leaf fused to the flowering stem and up to twenty small, dark purple flowers. It grows in a montane and subalpine grassland and forest in Victoria and the Australian Capital Territory.

Description

Genoplesium arrectum is a terrestrial, perennial, deciduous, herb with an underground tuber and a single thin leaf Шаблон:Convert long and fused to the flowering stem with the free part Шаблон:Convert long. Between three and twenty dark purple flowers are crowded along a flowering stem Шаблон:Convert tall and taller than the leaf. The flowers are about Шаблон:Convert long, Шаблон:Convert wide and are inverted so that the labellum is above the column rather than below it. The dorsal sepal is a broad egg shape, about Шаблон:Convert long and Шаблон:Convert wide with hairless edges and dark coloured bands. The lateral sepals are linear to lance-shaped, about Шаблон:Convert long, Шаблон:Convert wide, stiffly erect and more or less parallel to each other. The petals are a narrow egg shape, about Шаблон:Convert long and Шаблон:Convert wide with dark coloured bands and hairless edges. The labellum is elliptic to broadly egg-shaped, about Шаблон:Convert long, Шаблон:Convert wide, thick and fleshy with coarse hairs on its edges. There is an narrow egg-shaped callus in the centre of the labellum and extending three-quarters of the way to its tip. Flowering occurs in December and January.[1][2]

Taxonomy and naming

Genoplesium arrectum was first formally described in 1991 by David Jones from a specimen collected near Omeo and the description was published in Australian Orchid Research.[3][4] In 2002 Jones and Mark Clements changed the name to Corunastylis arrecta.[5] The specific epithet (arrecta) is a Latin word meaning "upright",[6] referring to the stiffly erect lateral sepals.[4]

Distribution and habitat

Genoplesium arrectum grows in grassland and grassy forest at altitudes above Шаблон:Convert in north-eastern Victoria and in the Australian Capital Territory.[1][2]

References

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External links

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