Habenaria chlorosepala

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Green-hooded rein orchid
LR041 72dpi Habenaria chlorosepala.jpg
Drawing of H. chlorosepala by Lewis Roberts
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Orchideae
Subtribe: Orchidinae
Genus: Habenaria
Species:
H. chlorosepala
Binomial name
Habenaria chlorosepala

Habenaria chlorosepala, commonly known as the green-hooded rein orchid, [2] is a species of orchid that is endemic to a small area in far north Queensland. It has two or three leaves at its base and up to twenty small green and white flowers.

Contents

Description

Habenaria chlorosepala is a tuberous, perennial herb with two or three bluish-green, erect leaves, 20–60 mm (0.8–2 in) long and 6–10 mm (0.2–0.4 in) wide. Between eight and twenty green flowers with a white labellum, 8–10 mm (0.3–0.4 in) long and 5–6 mm (0.20–0.24 in) wide are borne on a flowering stem 200–530 mm (8–20 in) tall. The dorsal sepal and petals overlap at their bases and form a hood over the column. The sepals and petals are about 5 mm (0.2 in) long and 3 mm (0.1 in) wide, the lateral sepals spread widely apart from each other. The labellum is 4.5–5 mm (0.18–0.20 in) long and 8–10 mm (0.3–0.4 in) wide with three lobes, the side lobes arranged at about 90° to the middle lobe. The labellum spur is white, 7–8 mm (0.28–0.31 in) long, about 1 mm (0.04 in) wide and curves forward. Flowering occurs between January and April. [2]

Taxonomy and naming

Habenaria chlorosepala was first formally described in 1998 by David Jones from a specimen collected near Cooktown by Lewis Roberts in 1993 and the description was published in The Orchadian. [3] The specific epithet (chlorosepala) is derived from the Ancient Greek word chloros meaning "green" [4] :201 and the Neo-Latin word sepalum meaning "a leafy division of the calyx". [4] :695

Distribution and habitat

The green-hooded rein orchid has a narrow distribution south of Cooktown where it grows with low plants in summer-wet woodland. [2]

Related Research Articles

<i>Habenaria</i> Species of orchid

Habenaria, commonly called rein orchids or bog orchids, is a widely distributed genus of orchids in the tribe Orchideae. About 880 species of Habenaria have been formally described. They are native to every continent except Antarctica, growing in both tropical and subtropical zones.

<i>Acriopsis emarginata</i> Species of orchid

Acriopsis emarginata, commonly known as the pale chandelier orchid, is a species of orchid endemic to Queensland. It is a clump-forming epiphyte with dark green leaves and curved, branching flower stems with many white and cream-coloured flowers.

<i>Habenaria elongata</i> Species of orchid

Habenaria elongata, commonly known as the white rein orchid, or Kimberley spider orchid, is a species of orchid that is endemic to northern Australia. It has up to four leaves at its base and up to twenty small white flowers with yellowish tips and thread-like lobes on the labellum.

Habenaria euryloba, commonly known as the small rein orchid, is a species of orchid that is endemic to a small area in far north Queensland. It has two or three leaves at its base and up to twenty small white flowers with a trident-like labellum.

<i>Habenaria exilis</i> Species of orchid

Habenaria exilis, commonly known as the wispy rein orchid, is a species of orchid that is endemic to a small area in far north Queensland. It usually has two leaves at its base and up to fifteen tiny whitish flowers.

Habenaria ferdinandi, commonly known as the yellow rein orchid, is a species of orchid that is endemic to the Northern Territory. It usually has two leaves at its base and up to fifteen tiny yellowish green, strongly scented flowers.

Habenaria fuscina, commonly known as the green rein orchid, is a species of orchid that is endemic to Cape York Peninsula. It has two or three leaves at its base and up to fifteen small green and white flowers with a labellum shaped like a trident.

Habenaria halata, commonly known as the sweet rein orchid, is a species of orchid that is endemic to northern parts of the Northern Territory. It has two or three leaves at its base and up to eighteen small white, sweet-smelling flowers with a labellum shaped like a trident.

Habenaria harroldii, commonly known as the southern rein orchid, is a species of orchid that is endemic to the Fraser Coast region of Queensland. It has up to five leaves at its base and up to twenty five white flowers with reduced side lobes on the labellum.

Peristylus chlorandrellus, commonly known as the green ogre orchid, is a species of orchid that is endemic to north-eastern Queensland. It has between four and seven leaves near its base and up to thirty six green flowers with a three-lobed labellum.

Habenaria hymenophylla, commonly known as the coastal rein orchid, is a species of orchid that is endemic to northern Australia. It up to eight leaves scattered along the stem and up to thirty smelly green and white flowers.

<i>Habenaria propinquior</i> Species of orchid

Habenaria propinquior, commonly known as the common rein orchid, is a species of orchid that is endemic to north Queensland. It has two to four leaves at its base and up to thirty white flowers with thread-like lobes on the labellum.

<i>Habenaria rumphii</i> Species of orchid

Habenaria rumphii, commonly known as the stiff rein orchid, is a species of orchid that is widespread and common in Southeast Asia, New Guinea and northern Australia. It has six or seven leaves on the lower part of its stem and up to thirty white flowers with one long and two short lobes on the labellum.

Habenaria macraithii, commonly known as the whiskered rein orchid, is a species of orchid that is endemic to a small area in far north Queensland. It has up to eleven scattered leaves and up to twenty five relatively large green flowers with thread-like petal lobes.

Habenaria ochroleuca, commonly known as the sickle orchid or sickle habenaria, is a species of orchid that is endemic to northern Australia. It has two or three broad, glabrous leaves and up to twenty five white flowers on a flowering stem with many overlapping bracts. The side lobes of the labellum curve upwards.

Habenaria praecox, commonly known as the early rein orchid, is a species of orchid that is endemic to the north coast of Queensland. It has between two and four narrow, upright leaves at its base and up to thirty five small white flowers with a green dorsal sepal.

Habenaria triplonema, commonly known as the twisted rein orchid, is a species of orchid that is endemic to northern Australia. It two or three leaves at its base and up to twenty five yellowish, strongly scented flowers.

Habenaria vatia, commonly known as the curved rein orchid, is a species of orchid, that is endemic Queensland where it is only known from a small number of islands. It has between three and five leaves at its base and up to twenty-five small white flowers with a relatively long green and white nectary spur.

<i>Habenaria xanthantha</i> Species of orchid

Habenaria xanthantha, commonly known as the freak rein orchid, is a species of orchid that is endemic to far northern Queensland. It has two or three leaves at its base and up to twenty small white flowers often lacking the nectary spur present on other species in the genus.

Dendrobium coriaceum, commonly known as the inland rock orchid, is a species of lithophytic orchid that is endemic to North Queensland. It has tapered pseudobulbs, up to three thick, leathery leaves and up to forty yellow or cream-coloured flowers with purple markings on the labellum.

References

  1. "Habenaria chlorosepala". 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. p. 341. ISBN   1877069124.
  3. "Habenaria chlorosepala". APNI. Retrieved 22 August 2018.
  4. 1 2 Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press.