Dendrobium pruinosum

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Honey orchid
LR025 72dpi Dendrobium luteocilium.jpg
Illustration of Dendrobium pruinosum by Lewis Roberts
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Epidendroideae
Tribe: Dendrobieae
Genus: Dendrobium
Species:
D. pruinosum
Binomial name
Dendrobium pruinosum
Synonyms [1]
  • Grastidium pruinosum(Teijsm. & Binn.) Rauschert
  • Dendrobium crispilobum J.J.Sm.
  • Dendrobium microglossum Schltr.
  • Dendrobium luteocilium Rupp
  • Grastidium luteocilium(Rupp) Rauschert
  • Grastidium microglossum(Schltr.) Rauschert

Dendrobium pruinosum, commonly known as the honey orchid, [2] is an epiphytic or lithophytic orchid in the family Orchidaceae and has flattened, yellowish stems and pairs of cream coloured, dull yellow or greenish flowers. It grows in tropical North Queensland and New Guinea.

Contents

Description

Dendrobium pruinosum is an epiphytic or lithophytic herb that has flattened, yellowish stems 0.3–2 m (1–7 ft) long and 10–15 mm (0.4–0.6 in) wide. The leaves are arranged along the stems and are yellowish green, leathery, 80–120 mm (3.1–4.7 in) long and 40–50 mm (1.6–2.0 in) wide. The flowering stems are arranged in pairs on the side of the leafy stems and are 17–20 mm (0.67–0.79 in) long and wide. The flowers are resupinate, cream-coloured, yellow or greenish but only open for a few hours. The dorsal sepal is 20–25 mm (0.79–0.98 in) long, about 6 mm (0.2 in) wide and the lateral sepals are 14–18 mm (0.55–0.71 in) long, about 5 mm (0.20 in) wide. The petals are 13–17 mm (0.51–0.67 in) long and about 5 mm (0.2 in) wide. The labellum is curved, bright yellow, about 9 mm (0.4 in) long and 8 mm (0.3 in) wide with three lobes. The side lobes are rounded and the middle lobe has a prominent patch of yellow hairs in its centre. Flowering occurs sporadically throughout the year. [2] [3] [4]

Taxonomy and naming

Dendrobium pruinosum was first formally described in 1862 by Johannes Elias Teijsmann and Simon Binnendijk and the description was published in Natuurkundig tijdschrift voor Nederlandsch Indië. [1] [5] The specific epithet (pruinosum) in a Latin word meaning "frosty". [6]

Distribution and habitat

The honey orchid grows on trees and rocks in rainforest, usually in sunny, humid positions. It occurs in lowland and lower montane forest in New Guinea, on some Torres Strait Islands and from the Iron Range to Tully on the Cape York Peninsula. [2] [3] [4]

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<i>Dendrobium canaliculatum</i> Species of orchid

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<i>Dendrobium tozerense</i> Species of orchid

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<i>Dendrobium malbrownii</i> Species of orchid

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Dendrobium neospectabile, commonly known as the Eungella king orchid, is a species of epiphytic or lithophytic orchid that is endemic to tropical North Queensland. It has cylindrical, yellowish green pseudobulbs, up to three thick, leathery leaves and up to two hundred and fifty crowded cream-coloured to pale yellow flowers with reddish purple streaks on the labellum.

Dendrobium deuteroeburneum, commonly known as the rainforest feather orchid, is a species of epiphytic or lithophytic orchid that is endemic to eastern Australia. Its pseudobulbs are cylindrical, pressed against the host tree or rock and have one or two leathery, dark green leaves and up to seven pale greenish cream-coloured flowers with purple markings on the labellum.

References

  1. 1 2 3 "Dendrobium pruinosum". 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. 399. ISBN   1877069124.
  3. 1 2 "Grastidium luteocilium". Trin keys: Australian Tropical Rainforest Orchids. Retrieved 27 November 2018.
  4. 1 2 "Dendrobium pruinosum". Orchids of New Guinea. Retrieved 27 November 2018.
  5. Teijsmann, Johannes Elias; Binnendijk, Simon (1862). "Plantae novae in Horto Borgoriensi Cultae". Natuurkundig tijdschrift voor Nederlandsch Indië. 24: 314–315. Retrieved 27 November 2018.
  6. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 432.