Melaleuca glena

Melaleuca glena is a plant in the myrtle family, Myrtaceae and is endemic to the south of Western Australia. It is similar to the commonly cultivated Melaleuca nesophila with its purple "pom-pom" flower heads but is a smaller shrub with the inflorescences much more often on the sides of the branches and only occasionally on the ends.

Melaleuca glena
M. glena leaves, flowers and fruit
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Melaleuca
Species:
M. glena
Binomial name
Melaleuca glena

Description

Melaleuca glena is a shrub growing to 2 m (7 ft) tall with papery bark and glabrous young stems. Its leaves are flat, narrow egg-shaped, 24–46 mm (0.9–2 in) long, 6.5–10.5 mm (0.3–0.4 in) wide with rounded ends and 5 to 7 longitudinal veins.[1][2]

The flowers are a shade of pink to purple and are arranged in heads or spikes usually only on the sides of the branches. The spikes are up to 15 mm (0.6 in) in diameter and composed of 5 to 12 groups of flowers in threes. The outer edge of the floral cup and the parts of the flowers covering the buds are covered with short, soft, silky white hairs. The petals are 1.2–1.8 mm (0.05–0.07 in) long and fall off as the flower ages. There are five bundles of stamens around the flower, each with 4 to 7 stamens. Flowering occurs in spring and early summer and is followed by fruit which are woody capsules 2.5–3.5 mm (0.098–0.14 in) long, in almost spherical clusters along the stem.[1][2]

M. glena at the type location in the Mount Burdett Nature Reserve

Taxonomy and naming

Melaleuca glena was first formally described in 1999 by Lyndley Craven in Australian Systematic Botany from a specimen collected near Scaddan.[3][4] The specific epithet (glena) is from the Ancient Greek glenos meaning “a thing to stare at" or "a thing to wonder at”[5][6] referring to the lateral flower heads of this species.[1]

Distribution and habitat

Melaleuca glena occurs in the Wittenoom Hills and Fitzgerald River districts near Esperance[1] in the Esperance Plains and Mallee biogeographic regions[7] where it grows in shrubland and mallee in clay soil over granite or laterite[1] or a fossil bearing rock called spongolite.[8]

Conservation

Melaleuca glena is listed as "not threatened" by the Government of Western Australia Department of Parks and Wildlife.[7]

References
  1. Brophy, Joseph J.; Craven, Lyndley A.; Doran, John C. (2013). Melaleucas : their botany, essential oils and uses. Canberra: Australian Centre for International Agricultural Research. p. 179. ISBN 9781922137517.
  2. Holliday, Ivan (2004). Melaleucas : a field and garden guide (2nd ed.). Frenchs Forest, N.S.W.: Reed New Holland Publishers. pp. 200–201. ISBN 1876334983.
  3. "Melaleuca glena". APNI. Retrieved 6 May 2015.
  4. Craven, L. A.; Lepschi, B. J. (1999). "Enumeration of the species and infraspecific taxa of Melaleuca (Myrtaceae) occurring in Australia and Tasmania". Australian Systematic Botany. 12 (6): 878. doi:10.1071/SB98019.
  5. Saul, L.R.; Squires, R.L. (2001). "Pacific slope Cretaceous gastropods" (PDF). Journal of Paleontology. 75 (1): 57. Retrieved 6 May 2015.
  6. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 312.
  7. "Melaleuca glena". FloraBase. Western Australian Government Department of Parks and Wildlife.
  8. Paczkowska, Grazyna; Chapman, Alex R. (2000). The Western Australian flora : a descriptive catalogue. Perth: Wildflower Society of Western Australia. p. 393. ISBN 0646402439.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.