Habenaria praecox

Habenaria praecox, commonly known as the early rein orchid,[2] 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.

Early rein orchid
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Orchideae
Genus: Habenaria
Species:
H. praecox
Binomial name
Habenaria praecox
Lavarack & Dockrill[1]

Description

Habenaria praecox is a tuberous, perennial herb with between two and four upright leaves, 50–100 mm (2–4 in) long and 4–6 mm (0.16–0.24 in) wide. Between three and thirty five green and white flowers, 8–10 mm (0.3–0.4 in) long and wide are borne on a flowering stem 200–500 mm (8–20 in) tall. The dorsal sepal is green, about 4 mm (0.2 in) long, 2.5 mm (0.1 in) wide and forms a hood over the column. The lateral sepals are about 5 mm (0.2 in) long, 1.4 mm (0.06 in) wide, curved and spread apart from each other. The petals are about 4 mm (0.2 in) long and 2.5 mm (0.1 in) wide. The labellum has three lobes. The side lobes are tapered, 4.5–5.5 mm (0.18–0.22 in) long with their tips curved upwards and the middle lobe is about 4 mm (0.2 in) long. The labellum spur curves forwards and is 7–9 mm (0.3–0.4 in) long. Flowering occurs from December to January.[2][3]

Taxonomy and naming

Habenaria praecox was first formally described in 1999 by Bill Lavarack and Alick Dockrill from a specimen collected near Cardwell and the description was published in Austrobaileya.[4] The specific epithet (praecox) is a Latin word meaning "early ripe" or "premature".[5]

Distribution and habitat

The early rein orchid grows with grasses and sedges in forests between Coen and Proserpine.[2]

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References
  1. "Habenaria praecox". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
  2. Jones, David L. (2006). A complete guide to native orchids of Australia including the island territories. Frenchs Forest, N.S.W.: New Holland. p. 343. ISBN 1877069124.
  3. Lavarack, Peter S.; Dockrill, Alick W. (1999). "A new species of Habenaria Willd. (Orchidaceae) from North Queensland". Austrobaileya. 5 (2): 331–335.
  4. "Habenaria praecox". APNI. Retrieved 28 August 2018.
  5. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 629.
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