Eucalyptus dorrigoensis

Last updated

Dorrigo white-gum
Eucalyptus dorrigoensis.jpg
Near Dorrigo
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. dorrigoensis
Binomial name
Eucalyptus dorrigoensis
Synonyms [2]
  • Eucalyptus benthamii var. dorrigoensis Blakely
  • Eucalyptus benthami var. dorrigoensisBlakely orth. var.

Eucalyptus dorrigoensis, commonly known as the Dorrigo white gum, [3] is a species of tree that is endemic to New South Wales. It has smooth white, grey or pink bark, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped, conical or hemispherical fruit.

Contents

Flower buds Eucalyptus dorrigoensis flower buds.jpg
Flower buds
Fruit Eucalyptus dorrigoensis buds.jpg
Fruit

Description

Eucalyptus dorrigoensis is a tree that typically grows to a height of 30 m (98 ft) and forms a lignotuber. It has smooth, slightly powdery white, grey or pink bark, sometimes with slabs of rough bark near the base. Young plants and coppice regrowth have warty stems, the leaves arranged in opposite pairs and egg-shaped to broadly lance-shaped, 35–80 mm (1.4–3.1 in) long and 13–40 mm (0.51–1.57 in) wide. Adult leaves are the same colour on both sides, lance-shaped to curved, 60–220 mm (2.4–8.7 in) long and 12–27 mm (0.47–1.06 in) wide on a petiole 5–25 mm (0.20–0.98 in) long. The flower buds are arranged in groups of seven in leaf axils on an unbranched peduncle 4–10 mm (0.16–0.39 in) long, the individual buds on a pedicel 1–3 mm (0.039–0.118 in) long. Mature buds are oval, 4–5 mm (0.16–0.20 in) long and 2–3 mm (0.079–0.118 in) wide with a conical operculum. Flowering occurs in May and the flowers are white. The fruit is a woody conical or hemispherical capsule 3–4 mm (0.12–0.16 in) long and 4–5 mm (0.16–0.20 in) wide with the valves extended beyond the rim. [3] [4] [5] [6]

Taxonomy and naming

Dorrigo white gum was first formally described in 1934 by William Blakely in his book A Key to Eucalypts and given the name Eucalyptus benthamii var. dorrigoensis. [7] In 1990, Lawrie Johnson and Ken Hill raised the variety to species status as Eucalyptus dorrigoensis. [5] [8] The specific epithet (dorrigoensis) is a reference to the distribution of this species near Dorrigo - the ending -ensis is a Latin suffix "denoting place, locality [or] country". [4] [9]

Distribution and habitat

Eucalyptus dorrigoensis grows in deep soils in valley forests from near the upper Macleay River to east of Tenterfield and mainly near Dorrigo. [3] [6]

See also

Related Research Articles

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

Eucalyptus ovata, commonly known as swamp gum or black gum, is a small to medium-sized tree species that is endemic to south-eastern Australia. It has mostly smooth bark, glossy green, lance-shaped to egg-shaped adult leaves, green flower buds in groups of seven, white flowers and conical to bell-shaped fruit.

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

Eucalyptus gregsoniana, commonly known as the Wolgan snow gum or mallee snow gum, is a species of mallee that is endemic to New South Wales. It has white to pale grey bark, lance-shaped to curved adult leaves, flower buds in groups of between seven and eleven, white flowers and cup-shaped, hemispherical or conical fruit.

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

Eucalyptus smithii, commonly known as the gully gum, gully peppermint, blackbutt peppermint, or ironbark peppermint, is a species of medium-sized to tall tree, sometimes a mallee, that is endemic to southeastern Australia. It has rough, compact bark on the trunk, smooth ribbony bark above, narrow lance-shaped adult leaves, flower buds in groups of seven, white flowers and cup-shaped, bell-shaped or hemispherical fruit.

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

Eucalyptus propinqua, commonly known as the grey gum or small-fruited grey gum, is a species of medium-sized to tall tree that is endemic to eastern Australia. It has smooth, mottled bark, lance-shaped to curved adult leaves that are paler on the lower surface, flower buds in groups of between seven and fifteen, white flowers and conical or hemispherical fruit.

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

Eucalyptus parramattensis, commonly known as the Parramatta red gum or drooping red gum, is a species of small to medium-sized tree that is endemic to eastern New South Wales. It has smooth, mottled bark, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and hemispherical fruit.

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

Eucalyptus racemosa, commonly known as snappy gum or narrow-leaved scribbly gum, is a species of small to medium-sized tree that is endemic to eastern Australia. It has smooth, mottled bark, lance-shaped to curved or egg-shaped adult leaves, flower buds in groups of between seven and fifteen, white flowers and cup-shaped, conical or hemispherical fruit.

Eucalyptus elaeophloia, commonly known as Nunniong gum or olive mallee, is a species of tree or mallee that is endemic to a restricted area in Victoria. It has mostly smooth greenish to greyish bark, glossy green, lance-shaped adult leaves, flower buds in groups of three, white flowers and conical or hemispherical fruit.

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

Eucalyptus benthamii, commonly known as Camden white gum, Bentham's gum, Nepean River gum, kayer-ro or durrum-by-ang, is a species of tree that is endemic to New South Wales. It has mostly smooth bluish grey or white bark, lance-shaped to curved adult leaves, flower buds arranged in groups of seven, white flowers and cup-shaped, bell-shaped or conical fruit.

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

Eucalyptus chloroclada, commonly known as Baradine gum, red gum or dirty gum, is a species of small to medium-sized tree that is endemic to eastern Australia. It usually has fibrous to flaky bark on the trunk and smooth bark above, lance-shaped adult leaves, flower buds in groups of seven, white flowers and hemispherical fruit.

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

Eucalyptus aquatica, commonly known as broad-leaved sally, or mountain swamp gum is a tree or mallee that is endemic to a small area of New South Wales in eastern Australia. It has smooth, greyish bark, dull bluish green adult leaves, flower buds arranged in groups of seven, white flowers and conical or hemispherical fruit. It grows in swamps and other places with poor drainage.

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

Eucalyptus dunnii, commonly known as Dunn's white gum or simply white gum, is a species of medium-sized to tall tree that is endemic to eastern Australia. It has rough bark near the base, smooth white to cream-coloured bark above, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped, conical or hemispherical fruit.

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

Eucalyptus dwyeri, commonly known as Dwyer's red gum or Dwyer's mallee gum, is a species of small tree, sometimes a mallee that is endemic to eastern Australia. It has smooth, white or cream-coloured bark, lance-shaped to curved adult leaves, flower buds in groups of seven and conical, bell-shaped or hemispherical fruit.

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

Eucalyptus elliptica, commonly known as Bendemeer white gum, is a species of small to medium-sized tree that is endemic to eastern Australia. It has smooth bark, lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped or hemispherical fruit.

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

Eucalyptus glaucina, commonly known as the slaty red gum, is a species of small to medium-sized tree endemic to New South Wales. It has smooth, white and grey bark, lance-shaped adult leaves, flower buds in groups of seven, white flowers and hemispherical fruit with the valves protruding well above the level of the rim.

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

Eucalyptus major, commonly known as grey gum, is a species of tree that is endemic to a small area near the New South Wales - Queensland border. It has smooth greyish bark, lance-shaped adult leaves, flower buds in groups of seven and conical to cup-shaped fruit.

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

Eucalyptus nandewarica, commonly known as mallee red gum, is a species of tree or mallee that is endemic to a small area of western New South Wales. It has mostly smooth bark, lance-shaped adult leaves, flower buds in groups of three or seven, white flowers and cup-shaped or hemispherical fruit.

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

Eucalyptus rummeryi, commonly known as steel box, Rummery's box or brown box, is a species of medium-sized to tall tree that is endemic to northern New South Wales. It has rough bark on the trunk and branches, lance-shaped to curved adult leaves, flower buds in groups of three or seven on the ends of branchlets, white flowers and conical, hemispherical or cup-shaped fruit.

<i>Eucalyptus pauciflora <span style="font-style:normal;">subsp.</span> debeuzevillei</i> Subspecies of eucalyptus

Eucalyptus pauciflora subsp. debeuzevillei, commonly known as Jounama snow gum, is a mallee or small tree that is native to a few mountain peaks in south-eastern Australia. It has smooth, shiny bark, glossy green lance-shaped to egg-shaped leaves, flower buds in groups of between nine and fifteen, white flowers and hemispherical or conical fruit. It differs from other subspecies of E. pauciflora in having angular flower buds.

Eucalyptus pauciflora subsp. parvifructa is a mallee or small tree that is endemic to a small area of Victoria, Australia. It has smooth bark, slightly glaucous branchlets, glossy green, lance-shaped adult leaves, flower buds usually in groups of seven, white flowers and hemispherical or cup-shaped fruit. It differs from other subspecies of E. pauciflora in having a smaller habit and smaller leaves, flower buds and fruit.

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

Eucalyptus pauciflora subsp. niphophila, commonly known as snow gum, is a small tree or large shrub that is native to a few mountain peaks in eastern Australia. It has smooth bark, glossy green, lance-shaped to egg-shaped or elliptical leaves, flower buds in groups of between nine and fifteen, white flowers and cup-shaped, hemispherical or conical fruit. It differs from other subspecies of E. pauciflora in having more delicate, pedicellate flower buds and smaller leaves.

References

  1. Fensham, R.; Collingwood, T.; Laffineur, B. (2019). "Eucalyptus dorrigoensis". IUCN Red List of Threatened Species . 2019: e.T133376028A133376030. doi: 10.2305/IUCN.UK.2019-3.RLTS.T133376028A133376030.en . Retrieved 21 July 2024.
  2. 1 2 "Eucalyptus dorrigoensis". Australian Plant Census. Retrieved 24 June 2019.
  3. 1 2 3 Hill, Ken. "Eucalyptus dorrigoensis". Royal Botanic Garden Sydney. Retrieved 24 June 2019.
  4. 1 2 "Eucalyptus dorrigoensis". Euclid: Centre for Australian National Biodiversity Research. Retrieved 4 June 2020.
  5. 1 2 Johnson, Lawrence A.S.; Hill, Kenneth D. (26 September 1990). "New taxa and combinations in Eucalyptus and Angophora (Myrtaceae)". Telopea. 4 (1): 63. doi: 10.7751/telopea19904916 .
  6. 1 2 Chippendale, George M. "Eucalyptus benthamii var. dorrigoensis". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 24 June 2019.
  7. "Eucalyptus benthamii var. dorrigoensis". APNI. Retrieved 24 June 2019.
  8. "Eucalyptus dorrigoensis". APNI. Retrieved 24 June 2019.
  9. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 303.