Английская Википедия:Diuris micrantha

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Diuris micrantha, commonly called the dwarf bee orchid or tiny bee orchid, is a rare species of orchid which is endemic to the south-west of Western Australia. It has four to six linear leaves at its base and up to six yellow flowers with reddish brown markings. It grows in swampy places south of Perth.

Description

Diuris micrantha is a tuberous, perennial herb with between four and six linear leaves, each leaf Шаблон:Convert long and Шаблон:Convert wide in a loose tuft at the base. Up to six yellow flowers with reddish brown markings, about Шаблон:Convert long and Шаблон:Convert wide are borne on a flowering stem Шаблон:Convert tall. The dorsal sepal curves upwards and is narrow egg-shaped, Шаблон:Convert long and about Шаблон:Convert wide. The lateral sepals are linear, green and purplish, Шаблон:Convert long, about Шаблон:Convert wide, turned downwards and parallel to each other. The petals are more or less erect, spread apart from each other with a broadly egg-shaped to almost round blade Шаблон:Convert long and Шаблон:Convert wide on a reddish-brown stalk Шаблон:Convert long. There is a distinct reddish brown blotch near the tip of the petals. The labellum is Шаблон:Convert long and has three lobes. The centre lobe is egg-shaped to wedge-shaped, Шаблон:Convert wide and the side lobes are linear to egg-shaped, Шаблон:Convert long and about Шаблон:Convert wide. There are two parallel, reddish brown, ridge-like calli about Шаблон:Convert long near the mid-line of the base of the labellum. Flowering occurs in September and October.

Taxonomy and naming

Diuris micrantha was first formally described in 1991 by David Jones from a specimen collected in Mandogalup, and the description was published in Australian Orchid Review. The specific epithet (micrantha) is derived from the Ancient Greek words mikros meaning "small" or "little"Шаблон:Rp and anthos meaning "flower",Шаблон:Rp referring to the small flowers of this orchid.

Distribution and habitat

The dwarf bee orchid grows with dense sedges in swampy place between Perth and Boyup Brook in the Jarrah Forest and Swan Coastal Plain biogeographic regions.

Conservation

Diuris micrantha is classified as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and as "Threatened Flora (Declared Rare Flora — Extant)" by the Department of Environment and Conservation (Western Australia). It is threatened by weeds and by inappropriate fire regimes, especially by fires in winter and spring.