Английская Википедия:Genoplesium sigmoideum

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Genoplesium sigmoideum, commonly known as the Dave's Creek midge orchid, is a species of small terrestrial orchid that is endemic to a small area in the Lamington National Park in Queensland. It has a single thin leaf fused to the flowering stem and up to twenty dark red flowers with a hairy labellum. The species is treated as Corunastylis sigmoidea in Queensland.

Description

Genoplesium sigmoideum is a terrestrial, perennial, deciduous, herb with an underground tuber and a single thin leaf with a reddish base and Шаблон:Convert long, fused to the flowering stem with the free part Шаблон:Convert long. Between five and twenty flowers are crowded along a flowering stem Шаблон:Convert long, reaching to a height Шаблон:Convert. The flowers lean downwards, are dark red and about Шаблон:Convert wide. The flowers are inverted so that the labellum is above the column rather than below it. The dorsal sepal is egg-shaped, about Шаблон:Convert long and Шаблон:Convert wide and concave. The lateral sepals are linear to lance-shaped, about Шаблон:Convert long, Шаблон:Convert wide and spread widely apart with a whitish gland on the tip. The petals are linear to egg-shaped, about Шаблон:Convert long and Шаблон:Convert wide with a prominent S-shaped gland on the tip. The labellum is elliptic to egg-shaped with the narrower end towards the base, about Шаблон:Convert long, Шаблон:Convert wide with its edges densely covered with short hairs. There is a thick, tapering, dark purplish-red callus in the centre of the labellum and extending almost to its tip. Flowering occurs in December and January.[1][2]

Taxonomy and naming

Genoplesium sigmoideum was first formally described in 1991 by David Jones and the description was published in Australian Orchid Research.[3] In 2002, David Jones and Mark Clements changed the name to Corunastylis sigmoidea, the name the species is known by in Queensland, but the latter name is not accepted by the Australian Plant Census.[4][5] The specific epithet (sigmoideum) refers to the S-shaped gland on the petals.[2]

Distribution and habitat

Genoplesium sigmoideum grows with low shrubs in shallow soil on rock ledges near Dave's Creek in the Lamington National Park.[1][2]

References

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  1. 1,0 1,1 Шаблон:Cite book
  2. 2,0 2,1 2,2 Шаблон:Cite journal
  3. Шаблон:Cite web
  4. Ошибка цитирования Неверный тег <ref>; для сносок APC не указан текст
  5. Шаблон:Cite web