Alyxia spicata

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Alyxia spicata
Alyxia spicata unripe fruit Kewarra 4587.jpg
Alyxia spicata with unripe fruit at Kewarra Beach, Queensland
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Gentianales
Family: Apocynaceae
Genus: Alyxia
Species:
A. spicata
Binomial name
Alyxia spicata

Alyxia spicata, commonly known as chain fruit, is a sprawling shrub or vine in the family Apocynaceae. It is native to New Guinea and the Australian tropics. [2]

Plants may grow up to 4 metres (13 ft) high and have leaves in whorls of 4 on vertically growing shoots and whorls of 3 on horizontal shoots. [2] Flowers usually have an orange tube with cream lobes and are 3 to 4 mm (0.12 to 0.16 in) in diameter with a hairy calyx. Fruits transition through yellow and orange and ultimately black upon ripening. These are around 10 mm (0.39 in) in diameter and may be joined like beads on a string. [2]

The species was formally described in 1810 by Scottish botanist Robert Brown in Prodromus Florae Novae Hollandiae , based on a specimen collected at Vanderlin Island in the Gulf of Carpentaria. [1] Plant material had earlier been collected at Cape Grafton and the Endeavour River during Lieutenant James Cook's first voyage of discovery in 1770 and illustrated by Sydney Parkinson. [3] [4] An illustration of the species was published in 1900 with the name Gynopogon spicatum in Illustrations of the Botany of Captain Cook's Voyage Round the World in H.M.S. "Endeavour" in 1768-71. [5]

Alyxia spicata occurs naturally in rainforest, beach forest, vine thickets and on cliffs in New Guinea, the northernmost parts of Western Australia and the Northern Territory as well as north-east Queensland. [2] [6] It is found at altitudes ranging from sea level to 1,000 metres (3,300 ft). [2]

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References

  1. 1 2 "Alyxia spicataR.Br.". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government. Retrieved 27 August 2013.
  2. 1 2 3 4 5 F.A.Zich; B.P.M.Hyland; T.Whiffen; R.A.Kerrigan (2020). "Alyxia spicata". Australian Tropical Rainforest Plants Edition 8 (RFK8). Centre for Australian National Biodiversity Research (CANBR), Australian Government . Retrieved 20 June 2021.
  3. Jago, Bob. "Plants Collected by Banks & Solander in 1770 from North Queensland" (PDF). SGAP Queensland. Retrieved 27 August 2013.
  4. "Alyxia spicata". NMA Collections. National Museum of Australia. Retrieved 27 August 2013.
  5. Britten, James; Banks, Joseph; Solander (1900). Illustrations of the Botany of Captain Cook's Voyage Round the World in H. M. S. "Endeavour" in 1768-71. Longmans. Retrieved 27 August 2013.
  6. "Alyxia spicata". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.