Habenaria euryloba

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Small rein orchid
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Orchideae
Genus: Habenaria
Species:
H. euryloba
Binomial name
Habenaria euryloba

Habenaria euryloba, commonly known as the small 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 white flowers with a trident-like labellum.

Contents

Description

Habenaria euryloba is a tuberous, perennial herb with two or three leaves at its base, the leaves 70–110 mm (3–4 in) long and 8–11 mm (0.3–0.4 in) wide. Between eight and twenty white flowers, 8–10 mm (0.3–0.4 in) long and 10–12 mm (0.4–0.5 in) wide are borne on a flowering stem 250–500 mm (10–20 in) tall. The dorsal sepal and petals are 4–5 mm (0.16–0.20 in) long and about 2–3 mm (0.08–0.1 in) wide and joined at their bases to form a hood over the column. The lateral sepals are 5–6 mm (0.20–0.24 in) long, about 2.5 mm (0.1 in) wide, turn downwards and spread widely apart from each other. The labellum is 6–7.5 mm (0.24–0.30 in) long and wide with three lobes appearing like a trident. The middle lobe is about 4 mm (0.2 in) long and 2 mm (0.08 in) wide while the side lobes are much narrower and slightly shorter. The nectary spur is straight, white with a green tip, 6–8 mm (0.2–0.3 in) long and about 2.5 mm (0.1 in) wide. Flowering occurs between December and February. [2]

Taxonomy and naming

Habenaria euryloba was first formally described in 1998 by David Jones from a specimen collected near Cooktown in 1992 and the description was published in The Orchadian. [3] The specific epithet (euryloba) is derived from the Ancient Greek words eurys meaning "broad", "wide" or "widespread" [4] :310 and lobos meaning "a rounded projection or protuberance". [4] :493

Distribution and habitat

The small rein has a narrow distribution near Cooktown where it grows with sedges and rushes in summer-wet swamps and Melaleuca viridiflora wetland. [2]

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

Habenaria chlorosepala, commonly known as the green-hooded 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 green and white 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.

<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.

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.

<i>Peristylus maingayi</i> Species of orchid plant

Peristylus maingayi, commonly known as the white ogre orchid, is a species of orchid that is native to southern Indochina, New Guinea and north Queensland. It has two or three broad leaves near its base and up to fifteen small white flowers that are tube-shaped near the base and have a three-lobed labellum.

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.

<i>Sarcochilus serrulatus</i> Species of orchid

Sarcochilus serrulatus, commonly known as the banded butterfly orchid, is an epiphytic orchid endemic to tropical North Queensland. It has up to six crowded leaves with finely toothed and wavy edges and up to ten reddish brown flowers with a white, yellow-banded labellum.

References

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