Английская Википедия:Diuris unica

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Diuris unica is a species of orchid which is endemic to eastern Australia. It usually has only one grass-like leaf at its base and up to eight bright, lemon-yellow flowers with a few dark markings. It is similar to D. chrysantha but flowers much earlier than that species and has only a single leaf rather than two.

Description

Diuris unica is a tuberous, perennial herb with a single, linear leaf, Шаблон:Convert long, Шаблон:Convert wide and folded lengthwise. Up to eight flowers Шаблон:Convert wide are borne on a flowering stem Шаблон:Convert tall. The flowers are bright lemon-yellow with a few dark markings at the base of the dorsal sepal and labellum. The dorsal sepal curves upwards and is egg-shaped, Шаблон:Convert long and Шаблон:Convert wide. The lateral sepals are egg-shaped to spatula-shaped with the narrower end towards the base, Шаблон:Convert long, Шаблон:Convert wide, held below the horizontal and parallel to each other or crossed. The petals are erect with an elliptical to almost round blade, Шаблон:Convert long and wide on a blackish stalk Шаблон:Convert long. The labellum is Шаблон:Convert long and has three lobes. The centre lobe is egg-shaped to wedge-shaped, Шаблон:Convert long, Шаблон:Convert wide and the side lobes are oblong to broadly wedge-shaped, Шаблон:Convert long and about Шаблон:Convert wide. There are two thick, ridge-like calli Шаблон:Convert long in the mid-line of the base of the labellum. Flowering occurs from July to September.[1]

Taxonomy and naming

Diuris unica was first formally described in 2006 by David Jones from a specimen he collected near Maryborough in 1986.[2] The specific epithet (unica) is a Latin word meaning "only", "sole" or "singular",[3] referring to the single leaf of this orchid.[1]

Distribution and habitat

This orchid grows in wallum and sandy heath in coastal and near-coastal districts in south-eastern Queensland and disjunctly in northern New South Wales.[1]

References

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