Melaleuca genialis

Melaleuca genialis is a plant in the myrtle family, Myrtaceae, and is endemic to the south-west of Western Australia. It is a rare species, known from one nature reserve. It is similar to Melaleuca tinkeri, mainly differing from it in having hairy leaves and petals. (The leaves of M. tinkeri are glabrous.)

Melaleuca genialis

Priority Two — Poorly Known Taxa (DEC)
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Melaleuca
Species:
M. genialis
Binomial name
Melaleuca genialis
Lepschi

Description

Melaleuca genialis is a shrub growing to about 1.2 m (4 ft) tall. Its branchlets are covered with soft, silky hairs when young but become glabrous with age. The leaves are arranged alternately, 6.7–10 mm (0.3–0.4 in) long, 0.8–1.1 mm (0.03–0.04 in) wide, linear to narrow egg-shaped and tapering to a non-prickly point. They are also covered with soft, silky hairs and have single mid-vein.[1][2]

The flowers are a shade of pink to purple and are arranged in heads on the ends of branches which continue to grow after flowering. The heads are 11–14 mm (0.4–0.6 in) in diameter and contain 5 to 7 groups of flowers in threes. The petals are 0.8–1.1 mm (0.03–0.04 in) long and fall off as the flower matures. The stamens are arranged in five bundles around the flower, each bundle containing 2 to 5 stamens. The main flowering season is in October and is followed by fruit which are woody capsules 2.5–3.3 mm (0.1–0.1 in) long.[1][2]

Taxonomy and naming

Melaleuca genialis was first formally described as a new species in 2010 by Brendan J. Lepschi.[2][3] The specific epithet (genialis) is from the Latin word meaning "jovial" or "pleasant", referring to "the staff at the Western Australian Herbarium in the 1990s".[1]

Distribution and habitat

Melaleuca genialis has a restricted distribution in a nature reserve near Wagin in the Avon Wheatbelt biogeographic region. It grows in woodland in clay soils.[4]

Conservation status

Melaleuca genialis is listed as "Priority Two" by the Government of Western Australia Department of Parks and Wildlife[4] meaning it may be threatened but is poorly known, only occurring in a few locations.[5]

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. 174. ISBN 9781922137517.
  2. Craven, Lyndley; Lepschi, Brendan; Cowley, Kirsten (2010). "Melaleuca (Myrtaceae) of Western Australia: five new species, three new combinations, one new name and a new state record" (PDF). Nuytsia. 20: 31–32. Retrieved 29 April 2015.
  3. "Melaleuca genialis". APNI. Retrieved 29 April 2015.
  4. "Melaleuca genialis". FloraBase. Western Australian Government Department of Parks and Wildlife.
  5. "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 31 March 2020.
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