Eucalyptus brownii

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Brown's box
Eucalyptus brownii.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. brownii
Binomial name
Eucalyptus brownii
Synonyms [2]

Eucalyptus bicolor var parvifloraF.Muell. ex Benth.

Contents

foliage flowers and buds Eucalyptus brownii buds.jpg
foliage flowers and buds
foliage Eucalyptus brownii foliage.jpg
foliage

Eucalyptus brownii, commonly known as the Brown's box or Reid River box, [3] is a species endemic to Queensland. It is a small to medium-sized tree with hard, tough, fissured bark, lance-shaped adult leaves, flower buds in groups of eleven to fifteen, white flowers and usually cup-shaped fruit.

Description

Eucalyptus brownii is a species of tree that typically grows to a height of 18 metres (59 ft) and forms a lignotuber. It has rough, hard, fibrous-flaky bark with whitish patches, pale and patchy grey or grey-brown in colour and is persistent on the trunk and on the larger branches. Leaves on young plants and on coppice regrowth are arranged alternately, broadly lance-shaped to egg-shaped, 40–90 millimetres (1.6–3.5 in) long, 14–32 mm (0.6–1.3 in) wide and have a petiole. The adult leaves are the same glossy green on both sides, lance-shaped, 60–170 millimetres (2.4–6.7 in) long, 10–36 mm (0.4–1.4 in) wide on a petiole 15–30 millimetres (0.6–1.2 in) long. The flower buds are arranged in leaf axils in groups of eleven, thirteen or fifteen on a peduncle 3–8 millimetres (0.12–0.31 in) long, the individual flowers on a pedicel 1–4 millimetres (0.04–0.16 in) long. Mature buds are oval, 2–4 millimetres (0.08–0.16 in) long, 2–3 mm (0.08–0.12 in) wide with a rounded operculum. Flowering mainly occurs from August to October and the flowers are a creamy-white colour. The fruit is a woody, cup-shaped or sometimes bell-shaped capsule 2–3 millimetres (0.08–0.12 in) long and wide on a pedicel 1–3 millimetres (0.04–0.12 in) long, the valves eclosed or level with the rim. [3] [4]

Taxonomy and naming

Eucalyptus brownii was first formally described by Joseph Maiden and Richard Hind Cambage from specimens collected by Nicholas Daley along the Reid River near Townsville in 1912. [5] [6] [7] [8] The specific epithet (brownii) honours Robert Brown. [6]

Distribution and habitat

Brown's box grows on plains and gentle slopes in central eastern Queensland. It is found between the Connors River south of Sarina, Barcaldine, Hughenden, Charters Towers and Townsville. [9] It is often found as part of open woodland communities along with Eucalyptus persistens with a shrub layer of Eremophila mitchellii , Psydrax oleifolia , Flindersia maculosa and Lysiphyllum species on clay soils in Cainozoic plains or in association with Eucalyptus cambageana and E. crebra in woodlands on low metamorphic rises. [10]

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

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

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

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

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

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Eucalyptus atrata, commonly known as the Herberton ironbark or blue-leaved ironbark, is a small tree that is endemic to Queensland. It has hard, black "ironbark" on the trunk and all but the thinnest branches, lance-shaped adult leaves, buds usually arranged in groups of seven, white flowers and cup-shaped to hemispherical fruit. It is characterised by the blue-grey, powdery bloom on its leaves and flower buds.

<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 cullenii, commonly known as Cullen's ironbark, is a species of small to medium-sized tree that is endemic to Queensland. It has thick, rough, deeply furrowed "ironbark", lance-shaped adult leaves, green to yellow flower buds in groups of seven, white flowers and hemispherical fruit.

Eucalyptus decolor is a species of small to medium-sized tree that is endemic to Queensland. It has rough, hard, fissured "ironbark", lance-shaped to curved adult leaves that are distinctly paler on the lower surface, flower buds in groups of seven, white flowers and hemispherical to cup-shaped fruit.

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

Eucalyptus microneura, commonly known as Gilbert River box, is a species of small to medium-sized tree that is endemic to Queensland. It has rough, fibrous or flaky bark on the trunk and branches, lance-shaped adult leaves, flowers in groups of seven on a branching peduncle, white flowers and conical fruit.

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

Eucalyptus normantonensis, commonly known as Normanton box, is a species of mallee, rarely a small tree, that is endemic to northern Australia. It has rough, fibrous or flaky bark on some or all of the stems, lance-shaped to curved adult leaves, flower buds in groups of between seven and eleven, white flowers and cylindrical, barrel-shaped or shortened spherical fruit.

Eucalyptus paedoglauca, commonly known as the Mount Stuart ironbark, is a small to medium-sized tree that is endemic to a small area in Queensland. It has rough, dark ironbark, lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped fruit. It is only known from a few hills near Townsville.

Eucalyptus provecta is a species of small tree that is endemic to Queensland. It has rough, fibrous to flaky bark on the trunk and branches, lance-shaped adult leaves, flower buds in groups of seven on the ends of branchlets, white flowers and cup-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.

References

  1. Fensham, R., Laffineur, B. & Collingwood, T. 2019. Eucalyptus brownii. The IUCN Red List of Threatened Species 2019: e.T133378274A133378276. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T133378274A133378276.en. Downloaded on 20 September 2021.
  2. 1 2 "Eucalyptus brownii". Australian Plant Census. Retrieved 28 March 2019.
  3. 1 2 "Eucalyptus brownii Brown's box, Reid River box". Euclid: Centre for Australian National Biodiversity Research. Retrieved 28 March 2019.
  4. Chippendale, George M. "Eucalyptus brownii". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 28 March 2019.
  5. "Eucalyptus brownii". APNI. Retrieved 27 March 2019.
  6. 1 2 Maiden, Joseph H.; Cambage, Richard H. (1914). "On a new species of Eucalyptus from northern Queensland". Journal and Proceedings of the Royal Society of New South Wales. 47 (2): 215–217. Retrieved 28 March 2019.
  7. "Daley, Nicholas (1882-1963 )". Australian National Herbarium. Retrieved 28 March 2019.
  8. "Eucalyptus brownii". Eucalink. Royal Botanic Garden, Sydney. Retrieved 22 July 2017.
  9. "Reid River box – Eucalyptus brownii". Wetlandinfo. Queensland Government . Retrieved 22 July 2017.
  10. "Vegetation management regulation 2012- Schedule 2". Queensland Consolidated Regulations. Retrieved 22 July 2017.