Eucalyptus acroleuca

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Lakefield coolibah
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. acroleuca
Binomial name
Eucalyptus acroleuca

Eucalyptus acroleuca, commonly known as the Lakefield coolibah, [3] is a tree that is endemic to Cape York Peninsula in northern Australia. It has rough, tessellated bark near its base then smooth, white bark, lance-shaped leaves, oval to club-shaped buds with a hemispherical operculum and cup-shaped fruits.

Contents

Description

Eucalyptus acroleuca is a tree that grows to a height of up to 25 m (80 ft) with hard black or dark grey, tessellated bark for the lowest 2–4 mm (0.08–0.2 in) of its trunk. The upper bark is smooth, white and shed annually. Adult leaves are lance-shaped, 70–170 mm (3–7 in) long and 6–20 mm (0.2–0.8 in) wide with a petiole 4–15 mm (0.2–0.6 in) long. The flowers are arranged in groups of up to seven on a thin, cylindrical peduncle up to 8 mm (0.3 in) long, individual flowers on a cylindrical pedicel 1–3 mm (0.039–0.12 in) long. The buds are oval to club-shaped, 2.5–3.5 mm (0.098–0.14 in) long and 1.5–2.5 mm (0.059–0.098 in) wide at maturity. The operculum is hemispherical, about half as long as the flower cup. The fruit is a cup-shaped capsule, 2–3 mm (0.079–0.12 in) long and 1.5–2.5 mm (0.06–0.1 in) wide. [4] [5]

Taxonomy and naming

Eucalyptus acroleuca was first formally described in 1994 by Lawrie Johnson and Ken Hill from a specimen collected near the New Laura Homestead. [6] [4] The specific epithet (acroleuca) is derived from the Ancient Greek words acros meaning "highest" and leucos meaning "white", referring to the white bark on the higher branches of this species. [4] [5]

Distribution and habitat

This tree often grows in pure stands in woodland in heavy soils that are flooded in the wet season, and often grows near permanent lagoons. It occurs in the Lakefield National Park. [4]

Conservation

Eucalyptus acroleuca is classed as "least concern" under the Queensland Government Nature Conservation Act 1992. [7]

See also

Related Research Articles

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<i>Eucalyptus nobilis</i> Species of plant

Eucalyptus nobilis, commonly known as ribbon gum or giant white gum, is a species of medium to tall tree that is native to northern New South Wales and south-east Queensland. It has a long, straight trunk with smooth, greyish bark that is shed in long ribbons, lance-shaped or curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped or hemispherical fruit.

<i>Corymbia erythrophloia</i> Species of plant

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Corymbia brachycarpa is a species of tree that is endemic to central Queensland. It has rough, tessellated bark on the trunk and branches, lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers and urn-shaped to barrel-shaped fruit.

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<i>Corymbia peltata</i> Species of plant

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Corymbia petalophylla is a species of tree that is endemic to Queensland. It has rough, tessellated bark on the trunk and branches, lance-shaped or curved adult leaves, flower buds in groups of seven, white flowers and barrel-shaped, urn-shaped or shortened spherical fruit.

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Eucalyptus persistens is a species of small tree that is endemic to Queensland. It has rough, dark grey bark, lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped or barrel-shaped fruit.

Eucalyptus tardecidens is a species of mallee or small tree that is endemic to north Queensland. It has rough, fibrous or flaky bark on the trunk and branches, lance-shaped adult leaves, flower buds in groups of seven, white flowers and shortened oval to cylindrical fruit.

Eucalyptus lockyeri, commonly known as Lockyer's box, is a species of small tree endemic to a small area in Queensland. It has rough bark near the base of the trunk, smooth bark above, lance-shaped adult leaves, flower buds in groups of seven, white flowers and hemispherical fruit.

References

  1. Fensham, R., Collingwood, T. & Laffineur, B. 2019. Eucalyptus acroleuca. The IUCN Red List of Threatened Species 2019: e.T133377648A133377650. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T133377648A133377650.en. Downloaded on 20 September 2021.
  2. "Eucalyptus acroleuca". Australian Plant Census. Retrieved 14 November 2020.
  3. "Lakefield coolibah – Eucalyptus acroleuca". WetlandInfo. Queensland Government . Retrieved 23 October 2016.
  4. 1 2 3 4 Hill, Kenneth D.; Johnson, Lawrence A. (26 April 1994). "Systematic studies in the eucalypts. 6. A revision of the coolibahs, Eucalyptus subgenus Symphyomyrtus section Adnataria series Oliganthae subseries Microthecosae (Myrtaceae)". Telopea: 748–749. doi:10.7751/telopea19943000.
  5. 1 2 "Eucalyptus acroleuca". Euclid: Eucalypts of Australia. Retrieved 15 February 2019.
  6. "Eucalyptus acroleuca". APNI. Retrieved 15 February 2019.
  7. "Lakefield coolibah - Eucalyptus acroleuca". The State of Queensland Department of Environment and Science. Retrieved 15 February 2019.