Английская Википедия:Diuris gregaria

Содержание

Текст

Текст

Текст

Текст

Текст

Текст

Текст

Текст

Текст

Diuris gregaria, commonly known as clumping golden moths is a species of orchid that is endemic to Victoria. It between three and seven leaves and one or two bright yellow flowers with a few dark striations and usually grows in dense tufts of up to thirty plants. It is a rare species mostly only found in grassland west of Melbourne.

Description

Diuris gregaria is a tuberous, perennial herb which often grows in densely crowded tufts of up to thirty plants. Each has between three and seven narrow linear leaves Шаблон:Convert long and Шаблон:Convert wide in a loose tussock. One or two bright yellow flowers with a few short, dark striations, Шаблон:Convert wide are borne on a flowering stem Шаблон:Convert tall. The dorsal is egg-shaped and held close to horizontally, Шаблон:Convert long and Шаблон:Convert wide. The lateral sepals are green, lance-shaped with the narrower end towards the base, Шаблон:Convert long, about Шаблон:Convert wide, turned below horizontal and usually parallel to each other. The petals curve forwards, elliptic to egg-shaped, Шаблон:Convert long and Шаблон:Convert wide on a green stalk Шаблон:Convert long. The labellum is Шаблон:Convert long and has three lobes. The centre lobe is egg-shaped, Шаблон:Convert long and Шаблон:Convert wide and the side lobes are oblong to wedge-shaped, Шаблон:Convert long and about Шаблон:Convert wide with irregular edges. There are two dark yellow, pimply callus ridges near the mid-line of the labellum. Flowering occurs in September and October.

Taxonomy and naming

Diuris gregaria was first formally described in 2006 by David Jones from a specimen collected near Derrinallum and the description was published in Australian Orchid Research. The specific epithet (gregaria) is a Latin word meaning "pertaining to a flock or herd", referring to the clumping habit of this species.

Distribution and habitat

Clumping golden moths grows in grassland on the basalt plains in western Victoria.

Conservation

This orchid is classed as "endangered" under the Victorian government Flora and Fauna Guarantee Act 1988. Its range has been reduced by farming and agriculture.