Английская Википедия:Arthrochilus prolixus

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Шаблон:Short description Шаблон:Speciesbox Arthrochilus prolixus, commonly known as wispy elbow orchid, is a flowering plant in the orchid family (Orchidaceae) and is endemic to eastern Australia. It has a rosette of bluish green leaves at its base and up to twenty two pale green, insect-like flowers with dark reddish to purplish glands on its labellum.

Description

Arthrochilus prolixus is a terrestrial, perennial, deciduous, sympodial herb with an underground tuber which produces daughter tubers on the end of root-like stolons. It has a rosette of between two and six linear to lance-shaped leaves on a side branch at its base, each leaf Шаблон:Convert long and Шаблон:Convert wide. Between three and twenty two pale green, insect-like flowers Шаблон:Convert long are borne on a flowering stem Шаблон:Convert tall. The dorsal sepal is linear, Шаблон:Convert long, about Шаблон:Convert wide and partly wrapped around the base of the column. The lateral sepals are lance-shaped, Шаблон:Convert long, about Шаблон:Convert wide. The petals are linear, about Шаблон:Convert long and Шаблон:Convert wide. The lateral sepals and petals are turned back against the ovary. The labellum is about Шаблон:Convert long, Шаблон:Convert wide on a stalk or "claw" about Шаблон:Convert long. There is an insect-like callus about Шаблон:Convert long with dark reddish brown, hair-like glands in a central band. The tip of the callus is about Шаблон:Convert wide with shiny black glands. The column is light green to whitish with purplish spots, strongly curved, with two pairs of curved wings. Flowering occurs from December to February.

Taxonomy and naming

Arthrochilus prolixus was first formally described in 1991 by David Jones from a specimen collected near Wauchope. The description was published in Australian Orchid Research. The specific epithet (prolixus) is a Latin word meaning "stretched out long", referring to the long labellum calli.

Distribution and habitat

The wispy elbow orchid grows with grass and shrubs in forest between Manly in New South Wales and south-eastern Queensland. The largest population is in the Bulahdelah district. One colony has established itself in rotting sawdust at a sawmill.

Ecology

As with other Arthrochilus orchids, A. prolixus is pollinated by male thynnid wasps of the genus Arthrothynnus although the species involved is not known. It also reproduces asexually by producing new tubers.