Eucalyptus delegatensis

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Alpine ash
Eucalyptus delegatensis habit.jpg
Eucalyptus delegatensis growing between Corryong and Omeo
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. delegatensis
Binomial name
Eucalyptus delegatensis

Eucalyptus delegatensis, commonly known as alpine ash, gum-topped stringybark, white-top [3] and in Victoria as woollybutt, [4] is a species of tree that is endemic to southeastern Australia. It has a straight trunk with rough, fibrous to stringy bark on the lower half of the trunk, smooth white bark above, lance-shaped to curved adult leaves, flower buds in groups of between seven and fifteen, white flowers and barrel-shaped or hemispherical fruit.

Contents

flower buds Eucalyptus delegatensis buds.jpg
flower buds
fruit Eucalyptus delegatensis fruit.jpg
fruit
bark Eucalyptus delegatensis.jpg
bark

Description

Eucalyptus delegatensis is a tree that typically grows to a height of 40–50 m (130–160 ft), sometimes to 90 m (300 ft), and forms a lignotuber. The bark is rough, grey to black, fibrous or stringy on the lower half of the trunk, smooth white to greyish above. Young plants and coppice regrowth have broadly lance-shaped to egg-shaped leaves 70–200 mm (2.8–7.9 in) long and 27–82 mm (1.1–3.2 in) wide. Adult leaves are lance-shaped to curved, the same glossy green to bluish green on both sides, 75–230 mm (3.0–9.1 in) long and 13–55 mm (0.51–2.17 in) wide on a petiole 10–45 mm (0.39–1.77 in) long. The flower buds are arranged in groups of between seven and fifteen in leaf axils on an unbranched peduncle 8–20 mm (0.31–0.79 in) long, the individual buds on a pedicel 3–5 mm (0.12–0.20 in) long. Mature buds are oval to club-shaped, green to yellow or red, 4–5 mm (0.16–0.20 in) long and wide with a conical or rounded operculum with a small point on the tip. Flowering occurs between December and March and the flowers are white. The fruit is a woody barrel-shaped to hemispherical capsule 6–11 mm (0.24–0.43 in) long and wide with the valves near rim level or enclosed in the fruit. [3] [5] [6] [7]

Taxonomy and naming

Eucalyptus delegatensis was first formally described in 1900 by Richard Thomas Baker from a specimen collected by William Baeuerlen, (previously known as Wilhelm Bäuerlen) on "Delegate Mountain". The description was published in Proceedings of the Linnean Society of New South Wales . [8] [9] The specific epithet (delegatensis) refers to the type location. [3]

In 1985 Douglas John Boland described two subspecies and the names have been accepted by the Australian Plant Census:

Distribution and habitat

Alpine ash is widespread and often dominant in grassy or wet subalpine forest, in deep fertile soil, often on slopes, and commonly forms pure stands. In New South Wales and the Australian Capital Territory it is found south from the Brindabella Range and in Victoria it occurs at altitudes between 900 and 1,500 m (3,000 and 4,900 ft) east of Mount Macedon. Subspecies tasmaniensis is endemic to Tasmania. [6] [7]

See also

Related Research Articles

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

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

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

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

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

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

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

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

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

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

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

Eucalyptus tindaliae, commonly known as Tindal's stringybark, is a species of tree that is endemic to coastal eastern Australia. It has rough, stringy bark on the trunk and larger branches, lance-shaped to curved adult leaves, flower buds in groups of between nine and fifteen, white flowers and hemispherical fruit.

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

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

Eucalyptus mackintii, commonly known as the blue-crowned stringybark, is a species of medium-sized tree that is endemic to Victoria. It has rough, stringy bark on the trunk and branches, lance-shaped to curved adult leaves, flowers buds in groups of between seven and eleven, white flowers and cup-shaped or hemispherical fruit.

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

Eucalyptus socialis subsp. socialis, commonly known as the summer red mallee, is a subspecies of mallee that is endemic to inland south-eastern 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 white flowers and barrel-shaped to urn-shaped or spherical fruit.

References

  1. Fensham, R.; Laffineur, B.; Collingwood, T. (2019). "Eucalyptus delegatensis". IUCN Red List of Threatened Species . 2019: e.T61912169A61912172. doi: 10.2305/IUCN.UK.2019-3.RLTS.T61912169A61912172.en . Retrieved 23 October 2021.
  2. "Eucalyptus delegatensis". Australian Plant Census. Retrieved 28 May 2019.
  3. 1 2 3 "Eucalyptus delegatensis subsp. delegatensis". Euclid: Centre for Australian National Biodiversity Research. Retrieved 4 June 2020.
  4. Second paragraph of Boland, Douglas J. (1985). "Taxonomic revision of Eucalyptus delegatensis R.T.Baker (Myrtaceae)". Australian Forest Research. 15: 173–181. Retrieved 28 May 2019.
  5. Chippendale, George M. "Eucalyptus delegatensis". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 28 May 2019.
  6. 1 2 Hill, Ken. "Eucalyptus delegatensis". Royal Botanic Garden Sydney. Retrieved 28 May 2019.
  7. 1 2 Brooker, M. Ian; Slee, Andrew V. "Eucalyptus delegatensis subsp. delegatensis". Royal Botanic Gardens, Victoria. Retrieved 28 May 2019.
  8. "Eucalyptus delegatensis". APNI. Retrieved 28 May 2019.
  9. Baker, Richard Thomas (1900). "On some new species of Eucalyptus". Proceedings of the Linnean Society of New South Wales. 25: 305–308. doi:10.5962/bhl.part.12156 . Retrieved 28 May 2019.
  10. "Eucalyptus delegatensis subsp. delegatensis". Australian Plant Census. Retrieved 28 May 2019.
  11. "Eucalyptus delegatensis subsp. tasmaniensis". Australian Plant Census. Retrieved 28 May 2019.
  12. Boland, Douglas J. (1985). "Taxonomic revision of Eucalyptus delegatensis R.T.Baker (Myrtaceae)". Australian Forest Research. 15: 173–181. Retrieved 28 May 2019.