Melaleuca araucarioides

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Melaleuca araucarioides
Melaleuca araucarioides (habit).JPG
Melaleuca araucarioides at Cape Riche
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Melaleuca
Species:
M. araucarioides
Binomial name
Melaleuca araucarioides
Barlow

Melaleuca araucarioides is a plant in the myrtle family, Myrtaceae and is endemic to a small area of the south-west Western Australia. It is a many-branched shrub with the leaves arranged in a way that gives the plant the appearance of a conifer.

Contents

Description

Melaleuca araucarioides is a small to medium tree, about 0.5–1.5 m (2–5 ft) high and wide with rough bark. Its leaves are fleshy and glabrous, about 2–6 mm (0.08–0.2 in) long and 1–2 mm (0.04–0.08 in) wide. They are crowded and arranged in groups of three forming six rows of leaves along the branches. [1] [2] [3]

The flowers are pale cream-coloured in one or two heads on the ends of the younger branches or often on older wood. The heads of flowers are about 14–16 mm (0.55–0.63 in) in diameter. As with other melaleucas, the stamens are joined in bundles and in this species there are usually only 3 stamens per bundle. Flowers appear in spring and are followed by fruit which are woody capsules 2.5–3.5 mm (0.098–0.14 in) long, 2–4.3 mm (0.08–0.2 in) in diameter forming small, tight clusters with the thickened sepals remaining as teeth. [1] [2] [3]

foliage and flowers Melaleuca araucarioides (foliage and flowers).JPG
foliage and flowers
fruit Melaleuca araucarioides (fruits).JPG
fruit
bark Melaleuca araucarioides (bark).JPG
bark

Taxonomy and naming

Melaleuca araucarioides was first formally described in 1988 by Bryan Barlow in Nuytsia (journal) as a new species. It had formerly been included in Melaleuca blaeriifolia  Turcz. to which it is closely related. [4] The specific epithet (araucarioides) "alludes to the superficial resemblance of the leafy shoots to those of the gymnosperm genus Araucaria  Juss.". It is distuished from M. blaeriifolia mainly on the basis of the distinctive, regular leaf arrangement and the smaller size of the fruits. [2]

Distribution and habitat

This melaleuca is confined to the Ongerup-Cape Riche area in the Esperance plains and Mallee biogeographic regions of Western Australia. [5] It grows in well-drained sandy or loamy soils in heaths or open woodlands. [2]

Conservation status

Melaleuca araucarioides is classified as "not threatened" by the Government of Western Australia Department of Parks and Wildlife. [5]

Related Research Articles

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References

  1. 1 2 Holliday, Ivan (2004). Melaleucas : a field and garden guide (2nd ed.). Frenchs Forest, N.S.W.: Reed New Holland Publishers. pp. 20–21. ISBN   1876334983.
  2. 1 2 3 4 Quinn, F.C.; Cowley, K.J.; Barlow, Bryan A.; Thiele, K.R. (1998). "New names and combinations for some Melaleuca (Myrtaceae) species and subspecies from the south-west of Western Australia considered rare or threatened" (PDF). Nuytsia. 8 (3): 334–350. Retrieved 5 March 2015.
  3. 1 2 Brophy, Joseph J.; Craven, Lyndley A.; Doran, John C. (2013). Melaleucas : their botany, essential oils and uses (PDF). Canberra: Australian Centre for International Agricultural Research. p. 77. ISBN   9781922137517 . Retrieved 16 March 2015.
  4. "Melaleuca araucarioides". APNI. Retrieved 16 March 2015.
  5. 1 2 "Melaleuca araucarioides". FloraBase . Western Australian Government Department of Parks and Wildlife.