Eucalyptus ceracea

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Seppelt Range gum
Eucalyptus ceracea.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. ceracea
Binomial name
Eucalyptus ceracea

Eucalyptus ceracea also known as the Seppelt Range gum [2] or Seppelt Range yellow-jacket, [3] is a species of small tree or mallee that is endemic to a small area in the north of Western Australia. It has thick, fibrous or flaky bark on the trunk and larger branches, dull, glaucous, egg-shaped leaves arranged in opposite pairs, flower buds in groups of seven or nine, bright orange flowers and urn-shaped fruit. The leaves, buds and fruit are covered with a white wax.

Contents

Description

Eucalyptus ceracea is a small tree, often with many stems, or a mallee. It typically grows to a height of 3 to 6 metres (10 to 20 ft) and forms a lignotuber. The trunk and most of the branches are covered with thick, fibrous or flaky yellowish to reddish brown bark. Young plants, coppice regrowth and the crown of adult trees have egg-shaped, sessile leaves 60–100 mm (2.4–3.9 in) long and 30–55 mm (1.2–2.2 in) wide arranged in opposite pairs. The leaves are dull and glaucous and there are no adult leaves. The flower buds are arranged in groups of seven or nine on a peduncle 12–40 mm (0.47–1.57 in) long, the individual buds on a pedicel up to 5 mm (0.20 in) long. Mature buds are oval to pear-shaped, 15–17 mm (0.59–0.67 in) long and about 6 mm (0.24 in) wide with a rounded to conical operculum. Flowering has been recorded in June and the flowers are bright orange. The fruit is a woody, urn-shaped capsule 17–33 mm (0.67–1.30 in) long, 11–17 mm (0.43–0.67 in) wide and glaucous. The leaves, buds and fruits of the tree are covered with a white wax. [2] [3] [4] [5] [6]

Taxonomy and naming

Eucalyptus ceracea was first formally described in 1986 by Ian Brooker and Christopher Done from a specimen found south of the King George Falls in the Kimberley region. The description was published in the journal Nuytsia. [7] The specific epithet (ceracea ) is derived from the Latin word cereus meaning "wax" or "waxy", [8] referring to the waxy covering of the plant. [3]

Distribution and habitat

The Seppelt Range gum is found in skeletal sandy soils on scree slopes and sandstone ridges in a small area near the coast in the east Kimberley region of Western Australia. [2] Associated species include spinifex ( Plectrachne ) and trees including Eucalyptus tectifica , E. tetrodonta and Erythrophleum chlorostachys . It is only known from two populations found in the Seppelt Range, north of Wyndham. Both populations are located on land vested in the Aboriginal Land Trust. The number of mature flowering plants is not known but the total area on which they area found is less than 50 square kilometres (19 sq mi). [9]

Conservation status

This eucalypt is listed as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and as "Threatened Flora (Declared Rare Flora — Extant)" by the Department of Environment and Conservation (Western Australia). The main threats to the species are mining, inappropriate fire regimes and its limited distribution. [2] [9] [10]

See also

Related Research Articles

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<i>Eucalyptus balladoniensis</i> Species of eucalyptus

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<i>Eucalyptus effusa</i> Species of eucalyptus

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<i>Eucalyptus pantoleuca</i> Species of eucalyptus

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Eucalyptus × phylacis, commonly known as the Meelup mallee, is a species of tree or a robust mallee that is endemic to a small area in the southwest of Western Australia. It has rough, hard and corky bark on the trunk and larger branches, lance-shaped or curved adult leaves, flower buds in groups of eleven, creamy white flowers and hemispherical fruit. It is possibly a hybrid between E. decipiens and E. virginea.

<i>Eucalyptus pruinosa</i> Species of tree

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Eucalyptus rupestris, commonly known as Prince Regent gum, is a species of small tree that is endemic to the Kimberley region of Western Australia. It has smooth bark, elliptical to egg-shaped or broadly lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped to more or less cylindrical fruit.

<i>Eucalyptus suberea</i> Species of eucalyptus

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

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<i>Eucalyptus aequioperta</i> Species of eucalyptus

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<i>Eucalyptus celastroides</i> Species of eucalyptus

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<i>Eucalyptus chlorophylla</i> Species of eucalyptus

Eucalyptus chlorophylla, commonly known as green-leaf box, northern glossy-leaved box or glossy-leaved box, is a species of eucalypt that is endemic to northern Australia. It is a tree or mallee, with hard, rough bark, lance-shaped or curved adult leaves, flower buds in groups of seven, creamy white flowers and usually conical fruit.

Eucalyptus costuligera is a species of small tree that is endemic to the Kimberley region of Western Australia. It has short-fibrous or flaky bark on the trunk and branches, bluish, lance-shaped adult leaves, club-shaped flower buds in branched or unbranched inflorescences with the buds in groups of up to seven, creamy-white flowers and conical, cup-shaped or pear-shaped fruit.

Eucalyptus tephrodes is a species of small tree or mallee that is endemic to Western Australia. It has rough bark on the trunk and larger branches, smooth bark above, egg-shaped to lance-shaped adult leaves, flower buds in groups of three on the ends of branchlets and cup-shaped to hemispherical fruit.

Eucalyptus rhomboidea, commonly known as the diamond gum, is a species of mallet or tree that is endemic to the southwest of Western Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of seven, pale yellow flowers and cup-shaped to funnel-shaped fruit that is glaucous at first.

<i>Eucalyptus socialis <span style="font-style:normal;">subsp.</span> eucentrica</i> Subspecies of plant

Eucalyptus socialis subsp. eucentrica, commonly known as the inland red mallee, is a subspecies of mallee that is endemic to inland Australia. It usually has rough bark on the base of the trunk, smooth bark above, lance-shaped adult leaves, flower buds in groups of between seven and eleven, pale creamy yellow flowers and barrel-shaped to urn-shaped or spherical fruit.

References

  1. ↑ "Eucalyptus ceracea". Australian Plant Census. Retrieved 22 April 2019.
  2. 1 2 3 4 "Eucalyptus ceracea". FloraBase . Western Australian Government Department of Parks and Wildlife.
  3. 1 2 3 "Eucalyptus ceracea". Euclid: Centre for Australian National Biodiversity Research. Retrieved 4 June 2020.
  4. ↑ Chippendale, George M. "Eucalyptus ceracea". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 22 April 2019.
  5. ↑ Brooker, M. Ian; Done, Christopher C. (1986). "Eucalyptus ceracea, E. rupestris and E. chlorophylla (Myrtaceae), three new species in the Kimberley Division of Western Australia". Nuytsia. 5 (3): 382–385. Retrieved 22 April 2019.
  6. ↑ Hill, Kenneth D.; Johnson, Lawrence A.S. (1998). "Systematic studies in the eucalyptus 8. A review of the Eudesmoid eucalypts, Eucalyptus subgenus Eudesmia". Telopea. 7 (4): 412–413. doi: 10.7751/telopea19982006 .
  7. ↑ "Eucalyptus ceracea". APNI. Retrieved 22 April 2019.
  8. ↑ Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 195.
  9. 1 2 "Approved Conservation Advice for Eucalyptus ceracea (Seppelt Range Gum)" (PDF). Australian Government Department of the Environment. Retrieved 22 April 2019.
  10. ↑ "Eucalyptus ceracea — Seppelt Range Gum". Species Profile and Threats Database. Commonwealth of Australia . Retrieved 27 October 2016.
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