Eucalyptus celastroides

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Mirret
Eucalyptus celastroides subsp. celastroides habit.jpg
Eucalyptus celastroides near Coolgardie
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. celastroides
Binomial name
Eucalyptus celastroides

Eucalyptus celastroides, commonly known by the Noongar name of mirret, [2] is a species of eucalypt that is endemic to the south-west of Western Australia. It is a mallee, rarely a tree, and has rough bark on about half of the lower half of its tunk, smooth above, narrow lance-shaped adult leaves, flower buds in groups of seven or nine, white flowers and urn-shaped fruit.

Contents

buds Eucalyptus celastroides - Flickr - Kevin Thiele (1).jpg
buds
flowers Eucalyptus celastroides flowers.jpg
flowers
fruit Eucalyptus celastroides subsp. celastroides fruit.jpg
fruit

Description

Eucalyptus celastroides is a mallee, rarely a tree, and typically grows to a height of 5 to 8 metres (16 to 26 ft) and forms a lignotuber. It has rough, flaky bark for up to half the trunk, then smooth mottled whitish bark above, or sometimes from the base of the trunk. The leaves on young plants and on coppice regrowth are glaucous, egg-shaped to oblong, 30–50 mm (1.2–2.0 in) long and 12–25 mm (0.47–0.98 in) wide. Adult leaves are the same green to bluish green on both sides, narrow lance-shaped, 65–105 mm (2.6–4.1 in) long and 8–15 mm (0.31–0.59 in) wide on a petiole 8–20 mm (0.31–0.79 in) long. The flower buds are arranged in groups of seven or nine on a peduncle 4–18 mm (0.16–0.71 in) long, the individual buds on pedicels 2–4 mm (0.079–0.157 in) long. Mature buds are club-shaped to pear-shaped or oval, 6–10 mm (0.24–0.39 in) long and 3–4 mm (0.12–0.16 in) wide with a rounded operculum with a small point on the tip, or conical. Flowering occurs between August and January and the flowers are white. The fruit is a woody, urn-shaped capsule 5–8 mm (0.20–0.31 in) long and 4–8 mm (0.16–0.31 in) wide with the valves enclosed. [3] [4] [5]

Taxonomy and naming

Eucalyptus celastroides was first formally described by Nikolai Turczaninow in 1852 from a specimen collected by James Drummond. The description was published in the journal Bulletin de la Classe Physico-Mathématique de l'Académie Impériale des Sciences de Saint-Pétersbourg. [6] [7] The specific epithet (celastroides) is a reference to the genus Celastrus . The ending -oides is a Latin suffix meaning "likeness". [8]

In 1986, Ian Brooker described two subspecies in the journal Nuytsia and the names have been accepted by the Australian Plant Census: [9]

Distribution and habitat

Mirret is often found on flat or undulating country where it grows in sandy or clayey soils. Subspecies celastroides has a more easterly distribution than subspecies virella. The former occurs in the goldfields between Kellerberrin and Norseman, extending almost to Balladonia. [4] [13] Subspecies virella occurs mainly in the wheatbelt. [12] [14]

See also

Related Research Articles

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References

  1. "Eucalyptus celastroides". Australian Plant Census. Retrieved 21 April 2019.
  2. "Noongar names for plants". kippleonline.net. Archived from the original on 20 November 2016. Retrieved 21 April 2019.
  3. "Eucalyptus celastroides". FloraBase . Western Australian Government Department of Parks and Wildlife.
  4. 1 2 3 "Eucalyptus celastroides". Euclid: Centre for Australian National Biodiversity Research. Retrieved 4 June 2020.
  5. Chippendale, George M. "Eucalyptus celastroides". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 21 April 2019.
  6. "Eucalyptus celastroides". APNI. Retrieved 21 April 2019.
  7. Turczaninow, Nikolai (1852). "Myrtaceae Xerocarpicae in Nova Hollandia a cl. Drummond lectae et plerumque in collectione ejus quinta distributae, determinatae et descriptae". Bulletin de la Classe Physico-Mathématique de l'Académie Impériale des Sciences de Saint-Pétersbourg. 10: 338. Retrieved 21 April 2019.
  8. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 483.
  9. 1 2 3 Brooker, M. Ian H. (1986). "New species and subspecies of the informal "Eucalyptus series Calycogonae" Pryor & Johnson (Eucalyptus series Aridae Blakely - Myrtaceae)". Nuytsia. 5 (3): 359–362. Retrieved 21 April 2019.
  10. "Eucalyptus celastroides subsp. celastroides". Australian Plant Census. Retrieved 21 April 2019.
  11. "Eucalyptus celastroides subsp. virella". Australian Plant Census. Retrieved 21 April 2019.
  12. 1 2 "Eucalyptus celastroides subsp. virella". Euclid: Centre for Australian National Biodiversity Research. Retrieved 21 April 2019.
  13. "Eucalyptus celastroides subsp. celastroides". FloraBase . Western Australian Government Department of Parks and Wildlife.
  14. "Eucalyptus celastroides subsp. virella". FloraBase . Western Australian Government Department of Parks and Wildlife.