Английская Википедия:Calochilus robertsonii

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Calochilus robertsonii, commonly known as the purple beard orchid or purplish beard orchid, is a species of orchid native to Australia and New Zealand. It has a single dark green leaf and up to nine green to brown flowers with reddish or purplish stripes. The labellum has a glossy purple, mauve, or bronze-coloured beard with a ridge between the "eye" spots.

Description

Calochilus robertsonii is a terrestrial, perennial, deciduous, herb with an underground tuber and a single fleshy, dark green, linear to lance-shaped leaf which is Шаблон:Convert long and Шаблон:Convert wide. Unlike some others in the genus, the leaf is fully developed at flowering time. Up to nine green to brown flowers with reddish or purplish stripes are borne on a flowering stem Шаблон:Convert tall. The dorsal sepal is Шаблон:Convert long, Шаблон:Convert wide and the lateral sepals are a similar length but narrower. The petals are Шаблон:Convert long and Шаблон:Convert wide. The labellum is flat, Шаблон:Convert long, Шаблон:Convert wide, with short, purplish calli near its base. The middle section of the labellum has coarse, mauve, purple or bronze-coloured hairs up to Шаблон:Convert and the tip has a glandular "tail" Шаблон:Convert long and about Шаблон:Convert wide. The column has two purple sham "eyes" joined by a distinct ridge. Flowering occurs from August to early December.

Taxonomy and naming

Calochilus robertsonii was first formally described in 1873 by George Bentham and the description was published in Volume 6 of Flora Australiensis. The specific epithet (robertsonii) honours John George Robertson (1803–1862) who collected the type specimen.

Distribution and habitat

The purplish beard orchid is widespread and common in eastern Australia where it grows in a range of habitats from heath to forest and scrubland and from coast to mountains. It is found in Queensland south from Gympie, from coastal districts and inland as far as Condobolin in New South Wales, throughout most of Victoria and in South Australia, the Australian Capital Territory, and Tasmania. In New Zealand, C. robertsonii only occurs on the North Island although a single specimen was collected on the northern tip of the South Island in 1965.