Pouched spur orchid
Illustration of Crepidium marsupichilum by Lewis Roberts
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Epidendroideae
Genus: Crepidium
Species:
C. marsupichilum
Binomial name
Crepidium marsupichilum
(Upton) Szlach.[1]
Synonyms[1]
  • Malaxis marsupichilum Upton

Crepidium marsupichilum, commonly known as the pouched spur orchid,[2] is a plant in the orchid family and is endemic to tropical far north Queensland. It is an evergreen, terrestrial orchid with an cone-shaped stem, light green, shiny leaves and a large number of purple flowers crowded along a green and purple flowering stem.

Description

Crepidium marsupichilum is a terrestrial, evergreen herb with an upright or leaning cone-shaped stem 50–120 mm (2–5 in) and 10–20 mm (0.4–0.8 in) wide. There are between four and six shiny, light green leaves with wavy edges, 200–400 mm (8–20 in) long and 50–100 mm (2–4 in) wide. A large number of purple, non-resupinate flowers are crowded along a green and purple flowering stem 200–500 mm (8–20 in) long. The flowers are about 8 mm (0.3 in) long and 9 mm (0.4 in) wide. The sepals are about 5 mm (0.2 in) long and 3 mm (0.1 in) wide, the dorsal sepal turned stiffly downwards and the lateral sepals spread apart from each other with their tips turned downwards. The petals are about 4 mm (0.2 in) long and 1.5 mm (0.06 in) wide with their tips turned down. The labellum is horseshoe-shaped, 5–6 mm (0.20–0.24 in) long and about 5 mm (0.2 in) wide with a blunt tip and smooth edges. Flowering occurs between January and April.[2][3]

Taxonomy and naming

The pouched spur orchid was first formally described in 1976 by Walter Thomas Upton who gave it the name Malaxis marsupichilum from a specimen collected in the McIlwraith Range. The description was published in The Orchadian.[4] In 1995 Dariusz Szlachetko changed the name to Crepidium marsupichilum.[1][5]

Distribution and habitat

Crepidium marsupichilum is widespread and common in tropical north Queensland including in the Iron Range and McIlwraith Range and on Torres Strait Islands where it grows in leaf litter in shady rainforest.[2][3]

References

  1. 1 2 3 "Crepidium marsupichilum". 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. 356. ISBN 1877069124.
  3. 1 2 D.L.Jones; T.Hopley; S.M.Duffy (2010). "Factsheet - Crepidium marsupichilum". Australian Tropical Rainforest Orchids. Centre for Australian National Biodiversity Research (CANBR), Australian Government. Retrieved 31 May 2021.
  4. ↑ "Malaxis marsupichilum". APNI. Retrieved 23 October 2018.
  5. ↑ "Crepidium marsupichilum". APNI. Retrieved 23 October 2018.
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