Английская Википедия:Diuris callitrophila

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Diuris callitrophila, commonly known as the Oaklands doubletail[1] or Oaklands diuris,[2] is a species of orchid which is endemic to a small part of southern New South Wales. It has two or three leaves and up to nine whitish and mauve flowers with darker markings and unusually long lateral sepals.

Description

Diuris callitrophila is a tuberous, perennial herb with two or three leaves Шаблон:Convert long, Шаблон:Convert wide and folded lengthwise. Between three and nine white, purple or mauve flowers with darker markings, Шаблон:Convert wide are borne on a flowering stem Шаблон:Convert tall. The dorsal sepal is more or less erect, Шаблон:Convert long and Шаблон:Convert wide. The lateral sepals are Шаблон:Convert long, Шаблон:Convert wide and turned downwards. The petals are ear-like and held erect above the rest of the flower, with an elliptic blade Шаблон:Convert long and Шаблон:Convert wide. The petals have a dark-coloured stalk Шаблон:Convert long that gradually expands towards the blade. The labellum is Шаблон:Convert long and has three lobes. The centre lobe is fan-shaped, Шаблон:Convert long and Шаблон:Convert wide and the side lobes are Шаблон:Convert long and Шаблон:Convert wide. There are two broad callus ridges Шаблон:Convert long at the base of the mid-line of the labellum. Flowering occurs in November and December.[1]

Taxonomy and naming

Diuris callitrophila was first formally described in 2003 by David Jones from a specimen collected near Oaklands and the description was published in The Orchadian.[3]

Distribution and habitat

The Oaklands doubletail is only known from a few locations between Oaklands and Urana where it grows in small groups in grassy places in Callitris woodland.[1]

Conservation

Diuris callitrophila is classed as "endangered" under the New South Wales Threatened Species Conservation Act. The main threats to the species are its restricted distribution and small population, weed invasion, grazing and inappropriate fire regimes. Steps are being taken to conserve the species by collecting the seed and its associated fungus, growing the orchid and reintroducing it to its natural habitat.[2][4]

References

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