Eucalyptus jacksonii

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Red tingle
Red tingle.jpg
Red tingle in the Valley of the Giants
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. jacksonii
Binomial name
Eucalyptus jacksonii

Eucalyptus jacksonii, commonly known as the red tingle, [3] is a species of tall tree endemic to the southwest of Western Australia and is one of the tallest trees found in the state. It has thick, rough, stringy reddish bark from the base of the trunk to the thinnest branches, egg-shaped to lance-shaped adult leaves, flower buds in groups of seven, white flowers and shortened spherical to barrel-shaped fruit.

Contents

Description

Eucalyptus jacksonii is a tree that typically grows to a height of 8 to 45 metres (26 to 148 ft) and has thick, rough, stringy and furrowed grey-brown or red-brown bark. The bases of very old, heavily buttressed trees can have a circumference up to 24 metres (79 ft). While some references have red tingle reaching heights of up to 75m, the tallest known living tree stands at 52 m (171 ft) tall. [4] The crown is dense and compact, forming a heavy canopy. [3] [5] [6] [7] [8] Young plants and coppice regrowth have broadly egg-shaped leaves that are dark green on the upper surface, paler below, 120–170 mm (4.7–6.7 in) long and 60–100 mm (2.4–3.9 in) wide. Adult leaves are arranged alternately, dark green on the upper surface, paler below, egg-shaped to lance-shaped, 60–95 mm (2.4–3.7 in) long and 12–25 mm (0.47–0.98 in) wide on a petiole 10–20 mm (0.39–0.79 in) long. The flower buds are arranged in leaf axils in groups of seven on an unbranched peduncle 8–12 mm (0.31–0.47 in) long, the individual buds on pedicels 4–6 mm (0.16–0.24 in) long. Mature buds are an elongated oval, 7–8 mm (0.28–0.31 in) long and 4–5 mm (0.16–0.20 in) wide with a conical operculum. Flowering occurs between January and March and the flowers are white. The fruit is a woody shortened spherical to barrel-shaped capsule 8–11 mm (0.31–0.43 in) long and 7–10 mm (0.28–0.39 in) wide on a pedicel 2–6 mm (0.079–0.236 in) long and with the valves enclosed below the level of the rim. [3] [5] [6] [7] [8]

The trees often have shallow root systems and grow a buttressed base. [9]

The heartwood is deep pink to reddish brown with a green-wood density of about 960 kg/m3 (1,620 lb/cu yd), and air-dried density about 770 kg/m3 (1,300 lb/cu yd). [7]

One specimen, known as the "Giant Tingle Tree" is a tourist attraction in the Walpole-Nornalup National Park near Walpole. Its base has been hollowed by fire and it is claimed to have the largest girth of any living eucalypt. [10] [11]

The red tingle is often compared to the other two species - the yellow tingle ( Eucalyptus guilfoylei ) and Rate's tingle ( Eucalyptus brevistylis ) are smaller. The red tingle is more closely related to Rate's tingle, both of which belong to the subgenus Eucalyptus. [9]

E. jacksonii typically live for 70 years. [1] Both red tingle and Rate's tingle, Eucalyptus brevistylis can live for up to 400 years. [12]

Taxonomy and naming

The species was first described by the botanist Joseph Maiden in 1914 in the Journal and Proceedings of the Royal Society of New South Wales. Eucalyptus jacksonii is named after Sidney William Jackson, an Australian naturalist and ornithologist. Jackson collected the specimens used by Maiden near the "Deep River", Nornalup Inlet and "Bow River", Irwin's Inlet. [13] [14] [15]

Distribution and habitat

The distribution of the species has been shrinking due to climate change and land clearing. They are now found primarily in Walpole-Nornalup National Park and in a few isolated sites outside the park in the Walpole area at the juncture of the South West and Great Southern regions along the south coast of Western Australia where it grows on hillsides and in gullies in loamy soils. [5]

The trees often occur with Eucalyptus marginata (jarrah) and Eucalyptus diversicolor (karri) and Corymbia calophylla (marri) trees. The red tingle also can occur with Eucalyptus guilfoylei (yellow tingle) and Eucalyptus brevistylis (Rate's tingle) and are the dominant species in the stands in which they occur. [9]

Ecology

Red Tingle is regarded as one of the six forest giants found in Western Australia; the other trees include; Corymbia calophylla (Marri), Eucalyptus diversicolor (Karri), Eucalyptus gomphocephala (Tuart), Eucalyptus marginata (Jarrah) and Eucalyptus patens (Yarri). [16] [17]

The species is listed as near threatened according to the International Union for Conservation of Nature in 2019. The estimated number of mature individuals is 22200 to 42000. It has an estimated area of occupancy of 112 km2 (43 sq mi) an estimated extent of occurrence of 445 km2 (172 sq mi). The population is stable but is severely fragmented. [1]

See also

Related Research Articles

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

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

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References

  1. 1 2 3 Fensham, R., Collingwood, T. & Laffineur, B. 2019. Eucalyptus jacksonii. The IUCN Red List of Threatened Species 2019: e.T133380436A133380438. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T133380436A133380438.en. Downloaded on 22November 2023.
  2. ↑ "Eucalyptus jacksonii". Australian Plant Census. Retrieved 1 August 2019.
  3. 1 2 3 "Eucalyptus jacksonii". Euclid: Centre for Australian National Biodiversity Research. Retrieved 1 June 2020.
  4. ↑ Nicolle, Dean (2019). Eucalypts of Western Australia - The South-West Coast and Ranges. WA: scott Print. pp. 272–3. ISBN   978-0-646-80613-6.
  5. 1 2 3 "Eucalyptus jacksonii". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  6. 1 2 Douglas J. Boland; Maurice William McDonald (2006). Forest Trees of Australia . CSIRO publishing. p.  276. ISBN   9780643069695.
  7. 1 2 3 "Red Tingle Eucalyptus jacksonii". Forest Products Commission. Retrieved 29 January 2017.
  8. 1 2 Chippendale, George M. "Eucalyptus jacksonii". Flora of Australia. Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 1 August 2019.
  9. 1 2 3 "The Tingle Forest". Gondwanalink. Retrieved 29 January 2017.
  10. ↑ "Giant Tingle Tree". Government of Western Australia, Department of Biodiversity, Conservation and Attractions. Retrieved 1 August 2019.
  11. ↑ "Giant Tingle Tree". Holiday Guide Pty Ltd. Retrieved 1 August 2019.
  12. ↑ "The Tingle Forest". GondwanaLink. 24 March 2015. Retrieved 28 January 2017.
  13. ↑ "Sidney William Jackson". Encyclopedia of Australian Science. Retrieved 21 March 2015.
  14. ↑ "Eucalyptus jacksonii". APNI. Retrieved 1 August 2019.
  15. ↑ Maiden, Joseph (1914). "Notes on Eucalyptus (with descriptions of a new species) no. 11". Journal and Proceedings of the Royal Society of New South Wales. 47 (2): 219–221. Retrieved 1 August 2019.
  16. ↑ "Eucalyptus gomphocephala". Australian Seed. Retrieved 22 August 2017.
  17. ↑ "Eucalyptus gomphocephala". Plants For A Future. Retrieved 28 April 2023.
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