Английская Википедия:Diuris platichila
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Diuris platichila, commonly known as the Blue Mountains doubletail,[1] is a species of orchid that is endemic to a few isolated places in the Blue Mountains in New South Wales. It has two leaves and up to eight yellow flowers with dark markings on the dorsal sepal and labellum. It has relatively long, thin lateral sepals and the central lobe of the labellum is wedge-shaped. It forms hybrids with other species of Diuris.
Description
Diuris platichila is a tuberous, perennial herb with two linear leaves Шаблон:Convert long, Шаблон:Convert wide and folded lengthwise. Between two and eight yellow flowers with dark markings on the dorsal sepal and labellum, Шаблон:Convert wide are borne on a flowering stem Шаблон:Convert tall. The dorsal sepal is erect, Шаблон:Convert long and Шаблон:Convert wide. The lateral sepals are Шаблон:Convert long, Шаблон:Convert wide and turned downwards. The petals are erect, egg-shaped to elliptic, Шаблон:Convert long and Шаблон:Convert wide on a reddish brown stalk Шаблон:Convert long. The labellum is Шаблон:Convert long and has three lobes. The centre lobe is wedge-shaped, Шаблон:Convert long and wide and folded lengthwise. The side lobes are Шаблон:Convert long and about Шаблон:Convert wide. There are two thick callus ridges Шаблон:Convert long near the mid-line of the labellum. Flowering occurs in September and October.[1][2]
Taxonomy and naming
Diuris platichila was first formally described in 1888 by Robert FitzGerald and the description was published in his book Australian Orchids.[3]
Distribution and habitat
The Blue Mountains doubletail grows in isolated populations in the Blue Mountains. It was previously more common in the area but has declined due to habitat loss and hybridisation with other species, including D. chryseopsis and D. bracteata.[1][2]
References
