Английская Википедия:Diuris exitela
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Diuris exitela, commonly called the Mount Moffat doubletail,[1] is a species of orchid which is endemic to central western Queensland. It has two linear leaves at its base, up to twelve bright yellow flowers with dark brown markings and grows on sandstone cliffs and ridges.
Description
Diuris exitela is a tuberous, perennial herb with two linear leaves Шаблон:Convert long, Шаблон:Convert wide and folded lengthwise. Between seven and twelve bright yellow flowers with dark brown markings, Шаблон:Convert wide and leaning downwards are borne on a flowering stem Шаблон:Convert tall. The dorsal sepal projects forward and is egg-shaped, Шаблон:Convert long and Шаблон:Convert wide and forms a hood over the rest of the flower. The lateral sepals are linear to lance-shaped with the narrower end towards the base, green and purple-brown, Шаблон:Convert long, Шаблон:Convert wide, turned downwards and usually crossed over each other. The petals are held horizontally or droop with an elliptic blade Шаблон:Convert long and Шаблон:Convert wide on a green to purplish 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 linear, purplish-brown, about Шаблон:Convert long and Шаблон:Convert wide. There are two ridge-like calli about Шаблон:Convert long near the base of the mid-line of the base of the labellum. Flowering occurs in September and October.[1][2]
Taxonomy and naming
Diuris exitela was first formally described in 1991 by David Jones from a specimen collected on Mount Moffat and the description was published in Australian Orchid Research.[3] The specific epithet (exitela) is derived from the Ancient Greek word exitelos meaning "lessening", "fading" or "weakening",[4] referring to the colour of the flowers which fades quickly from bright yellow to pale yellow as they age.[2]
Distribution and habitat
The Mount Moffat doubletail grows mainly on sandstone cliffs and ridges but also between sandstone boulders in woodland and is found on Mount Moffat and in Carnarvon Gorge in central western Queensland.[1][2]
References
