Microtis cupularis

Microtis cupularis, commonly known as the cupped mignonette orchid[2] sometimes as Hydrorchis cupularis,[3] is a species of orchid endemic to the south-west of Western Australia. It has a single thin, hollow, onion-like leaf and up to thirty small, yellowish-green and red flowers. The plants often grow in shallow water and are self-pollinating.

Cupped mignonette orchid
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Diurideae
Genus: Microtis
Species:
M. cupularis
Binomial name
Microtis cupularis
(D.L.Jones & G.Brockman) A.P.Br.[1]
Synonyms[1]

Description

Microtis cupularis is a terrestrial, perennial, deciduous, herb with an underground tuber and a single erect, smooth, tubular leaf 100–300 mm (4–10 in) long and about 3 mm (0.1 in) wide. Between fifteen and thirty yellowish-green and reddish-maroon flowers are arranged along a flowering stem 150–350 mm (6–10 in) tall. The flowers are about 4 mm (0.2 in) long, 3 mm (0.1 in) wide and are self-pollinating. The dorsal sepal is about 1.5 mm (0.06 in) long and wide. The lateral sepals are about 1.5 mm (0.06 in) long and curve around the labellum. The petals are a similar size to the lateral sepals and are partly enclosed by the labellum. The labellum is cup-shaped, fleshy and about 1.5 mm (0.06 in) long and wide. Flowering occurs from September to December.[2][3][4]

Taxonomy and naming

The cupped mignonette orchid was first formally described in 2005 by D.L.Jones and Garry Brockman from a specimen collected near Bull Creek and given the name Hydrorchis cupularis. The description was published in The Orchadian.[5] In 2007, Andrew Brown changed the name to Microtis cupularis.[6] The specific epithet (cupularis) is derived from the Latin word cupula meaning "cup",[7] referring to the cup-shaped labellum.[2]

Distribution and habitat

Microtis cupularis grows in seasonally wet depressions and where water runs of granite outcrops, often growing in several centimetres of water. It is found between Perth and to just east of Esperance.[2][3][4]

Conservation

Microtis cupularis is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[8]

References
  1. "Microtis cupularis". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
  2. Brown, Andrew; Dundas, Pat; Dixon, Kingsley; Hopper, Stephen (2008). Orchids of Western Australia. Crawley, Western Australia: University of Western Australia Press. p. 280. ISBN 9780980296457.
  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. 220. ISBN 1877069124.
  4. Hoffman, Noel; Brown, Andrew (2011). Orchids of South-West Australia (3rd ed.). Gooseberry Hill: Noel Hoffman. p. 349. ISBN 9780646562322.
  5. "Hydrorchis cupularis". APNI. Retrieved 17 February 2018.
  6. "Microtis cupularis". APNI. Retrieved 20 February 2018.
  7. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 242.
  8. "Microtis cupularis". FloraBase. Western Australian Government Department of Parks and Wildlife.
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