Eucalyptus aquilina

Eucalyptus aquilina, commonly known as the Mount Le Grand mallee,[3] is a mallee that is endemic to a small area in the south-west of Western Australia. It has smooth white and grey bark, lance-shaped, often curved leaves, top-shaped or diamond-shaped flower buds, white to cream-coloured flowers and cone-shaped fruit on a down-curved peduncle.

flower buds
fruit

Mount Le Grand mallee
Eucalyptus aquilina at Cape Le Grand
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. aquilina
Binomial name
Eucalyptus aquilina

Description

Eucalyptus aquilina is a mallee that typically grows to a height of 2 to 7 metres (7 to 23 ft) and has smooth white bark mottled with grey and forms a lignotuber. The leaves on young plants and on coppice regrowth are lance-shaped to egg-shaped and a slightly different shade of green on the two sides. The adult leaves are arranged alternately, the same glossy dark green on both sides, lance shaped or curved, 70 to 135 millimetres (2.8 to 5.3 in) long and 12 to 25 mm (0.5 to 1.0 in) wide with the base tapering to a petiole 10 to 20 millimetres (0.4 to 0.8 in) long. The flower buds are borne in leaf axils on a broadly flattened peduncle 12 to 35 mm (0.5 to 1.4 in) long. The buds are top-shaped to diamond-shaped, 28 to 32 millimetres (1.1 to 1.3 in) long and 23 to 38 mm (0.9 to 1.5 in) wide with a conical to rounded operculum with a small point on the top. Flowering occurs between April and October and the flowers are white to cream coloured. The fruit are conical with the narrower end towards the base, 20 to 29 mm (0.8 to 1.1 in) long and 35 to 50 mm (1.4 to 2.0 in) wide on a down-curved peduncle.[3][4][5][6]

Taxonomy and naming

Eucalyptus aquilina was first formally described in 1974 by Ian Brooker from a specimen collected near Cape Le Grand and the description was published in the journal Nuytsia.[7] The specific epithet (aquilina) is a Latin word meaning "of eagles",[8] referring to the eagle-like lobes on the fruit.[4]

Distribution and habitat

The Mount Le Grand mallee grows in shallow valleys, creek beds and hillsides in a small area in the Cape Le Grand National Park along the south coast, east of Esperance. It grows in dense heath in shallow soils over granite.[3]

Conservation

This eucalypt is classified as "Priority Four" by the Government of Western Australia Department of Parks and Wildlife,[3] meaning that is rare or near threatened.[9]

See also

References
  1. Fensham, R., Laffineur, B. & Collingwood, T. 2019. Eucalyptus aquilina. The IUCN Red List of Threatened Species 2019: e.T133377844A133377846. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T133377844A133377846.en. Downloaded on 20 September 2021.
  2. "Eucalyptus aquilina". Australian Plant Census. Retrieved 2 March 2019.
  3. "Eucalyptus aquilina". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. "Eucalyptus aquilina". Centre for Australian National Biodiversity Research. Retrieved 2 March 2019.
  5. Chippendale, George McCartney. "Eucalyptus aquilina". Australian Biological Resources Study, Department of the Environment and Energy, Canberra.
  6. Brooker, M. Ian (1974). "Six new species of Eucalyptus from Western Australia". Nuytsia. 1 (4): 297–300. Retrieved 2 March 2019.
  7. "Eucalyptus aquilina". APNI. Retrieved 2 March 2019.
  8. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 289.
  9. "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 2 March 2019.
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