Diuris luteola

Last updated

Northern doubletail
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Diurideae
Genus: Diuris
Species:
D. luteola
Binomial name
Diuris luteola

Diuris luteola, commonly called the northern doubletail, [2] is a species of orchid which is endemic to Queensland. It has a single linear leaf at its base and up to six pale yellow flowers with a few brown markings. It grows in shallow, stony soil on tablelands in eastern parts of the state.

Contents

Description

Diuris luteola is a tuberous, perennial herb with a single linear leaf 200–350 mm (8–10 in) long, 3–4 mm (0.1–0.2 in) wide with a purplish base. Up to six pale yellow flowers with a few brown markings, about 25 mm (1 in) wide are borne on a flowering stem 120–450 mm (5–20 in) tall. The dorsal sepal projects forward and is egg-shaped, 7–10 mm (0.3–0.4 in) long and 5–8 mm (0.2–0.3 in) wide. The lateral sepals are linear to lance-shaped with the narrower end towards the base, green with brown blotches, 12–20 mm (0.5–0.8 in) long, about 2 mm (0.08 in) wide, turned downwards and crossed over each other. The petals are more or less erect, spread apart from each other with an elliptic to egg-shaped blade with the narrower end towards the base. They are 6–10 mm (0.2–0.4 in) long and 4.5–8.5 mm (0.2–0.3 in) wide on a dark reddish brown stalk 3–5 mm (0.12–0.20 in) long. The labellum is 6–9 mm (0.2–0.4 in) long, usually projects forwards and has three lobes. The centre lobe is linear to egg-shaped, 4–7 mm (0.2–0.3 in) wide with a few pale brown markings. The side lobes are linear to oblong, erect, about 3 mm (0.1 in) long and 1–1.5 mm (0.04–0.06 in) wide. There are two parallel ridge-like calli about 5 mm (0.20 in) long near the base of the mid-line of the base of the labellum. Flowering occurs from July to September. [2] [3]

Taxonomy and naming

Diuris luteola was first formally described in 1991 by David Jones and Bruce Gray from a specimen collected on the Atherton Tableland near Herberton and the description was published in Australian Orchid Research. [4] The specific epithet (luteola) is a Latin word meaning "yellowish", [5] referring to the colour of the flowers of this species. [3]

Distribution and habitat

The northern doubletail grows in shallow soil in grassy forest from Mount Windsor adjacent to the Daintree National Park to the Blackdown Tableland. [2] [3]

Related Research Articles

Diuris maculata, commonly known as the spotted doubletail is a species of orchid which is endemic to New South Wales. It has up to two or three folded leaves and a flowering stem with up to eight yellow flowers with brown to blackish markings. It is similar to D. pardina which has darker flowers with larger brown markings.

<i>Diuris sulphurea</i> Species of orchid

Diuris sulphurea, commonly called the tiger orchid or hornet orchid, is a species of orchid which is endemic to eastern Australia. It has up to three leaves, and a flowering stem with up to seven bright yellow flowers with dark brown markings.

<i>Diuris protena</i> Species of orchid

Diuris protena, commonly known as northern golden moths, is a species of orchid which is endemic to Victoria. It has a tuft of between four and eight leaves at the base and up to three mostly yellow flowers with a few light-coloured marks. It is classed as "endangered" in Victoria.

<i>Diuris aequalis</i> Species of orchid

Diuris aequalis, commonly called the buttercup doubletail, is a species of orchid which is endemic to New South Wales. It has two rolled leaves and spikes of two to five golden-yellow to orange flowers and is classified as "vulnerable".

<i>Diuris abbreviata</i> Species of orchid

Diuris abbreviata, commonly known as the lemon doubletail, is a species of orchid that is endemic to eastern Australia. It has two or three leaves and a flowering stem with up to nine yellow flowers with darker markings.

<i>Diuris dendrobioides</i> Species of orchid

Diuris dendrobioides, commonly known as the wedge diuris, is a species of orchid which is endemic to eastern Australia. It has one or two leaves and a flowering stem with up to six pale lilac-coloured to mauve flowers with darker markings.

<i>Diuris praecox</i> Species of orchid

Diuris praecox, commonly known as the early doubletail, Newcastle doubletail or rough doubletail is a species of orchid which is endemic to New South Wales. It has two or three grass-like leaves and up to ten light yellow flowers with a few dark brown marks. It is threatened by urbanisation.

<i>Diuris arenaria</i> Species of orchid

Diuris arenaria, commonly known as the Tomaree donkey orchid or sand doubletail is a species of orchid which is endemic to a very small area of New South Wales. It has two grass-like leaves and up to nine mauve or light purple and white flowers. It has a very limited distribution near Newcastle.

Diuris chrysantha, commonly known as granite donkey orchid, is a species of orchid that is endemic to eastern Australia. It has one or two leaves and up to seven deep golden to orange-coloured flowers with brown markings and occurs on the ranges and tablelands north from Tamworth to the Darling Downs.

<i>Diuris concinna</i> Species of orchid

Diuris concinna, commonly called the elegant donkey orchid, is a species of orchid which is endemic to the south-west of Western Australia. It has up to five linear leaves at its base and up to five pale yellow flowers with brown markings. It is found along the south coast, often growing in areas that are flooded in winter and flowering more prolifically after fire the previous summer.

Diuris disposita, commonly called the Macleay River doubletail or Willawarrin doubletail, is a species of orchid which is endemic to a small area in New South Wales. It has one or two linear leaves at its base and up to seven yellow flowers with brown markings. Only about fifty plants survive in grassy forest near Kempsey.

Diuris eburnea is a species of orchid that is endemic to the south-west of Western Australia. It has between four and six linear leaves and up to eight pale yellow to cream-coloured flowers with reddish markings. It is only known from near the Arrowsmith River north of Eneabba.

Diuris exitela, commonly called the Mount Moffat doubletail, 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.

Diuris flavescens, commonly called the pale yellow doubletail or Wingham doubletail, is a species of orchid which is endemic to a small area in New South Wales. It has two linear leaves at its base and up to five pale yellow flowers with dark brown markings. Fewer than 200 plants survive in grassy forest near Wingham.

Diuris fragrantissima, commonly called the fragrant doubletail or Sunshine diuris, is a species of orchid which is endemic to a small area to the west of Melbourne. It has two linear leaves at its base and up to twelve white flowers with mauve or pale purple markings with unusually long lateral sepals. Only about thirty plants survive in grassland near Sunshine.

Diuris micrantha, commonly called the dwarf bee orchid or tiny bee orchid, is a rare species of orchid which is endemic to the south-west of Western Australia. It has four to six linear leaves at its base and up to six yellow flowers with reddish brown markings. It grows in swampy places south of Perth.

Diuris oporina, commonly called the autumn donkey orchid or northern white donkeys tails is a species of orchid that is endemic to Queensland. It has a single tapering, linear leaf at its base and up to ten white flowers with mauve to purple markings. It grows in the drier parts of the tablelands in Far North Queensland.

<i>Diuris pedunculata</i> Species of orchid

Diuris pedunculata, commonly known as the small snake orchid, is a species of orchid which is endemic to New South Wales. It usually has two leaves at its base and one or two yellow and orange flowers with purple markings. It originally occurred in scattered populations between Tenterfield and the Hawkesbury River but because of habitat loss is now only known from the New England Tableland.

Diuris platichila, commonly known as the Blue Mountains doubletail, 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.

Diuris recurva, commonly called the mini donkey orchid is a species of orchid that is endemic to the south-west of Western Australia. It has one or two leaves at its base, up to six small pale yellow and brownish flowers and grows in winter-wet places between Badgingarra and Kalbarri.

References

  1. "Diuris luteola". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
  2. 1 2 3 Jones, David L. (2006). A complete guide to native orchids of Australia including the island territories. Frenchs Forest, N.S.W.: New Holland. pp. 129–130. ISBN   1877069124.
  3. 1 2 3 Jones, David L. (1991). "New taxa of Australian Orchidaceae". Australian Orchid Research. 2: 57–58.
  4. "Duiris luteola". APNI. Retrieved 26 March 2018.
  5. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 500.