Corymbia torta

Corymbia torta is a species of tree that is endemic to the Kimberley region of Western Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of three or seven, creamy white flowers and cup-shaped, cylindrical or barrel-shaped fruit.

Corymbia torta
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Corymbia
Species:
C. torta
Binomial name
Corymbia torta

DescriptionEdit

Corymbia torta is a tree that typically grows to a height of 12 to 15 metres (39 to 49 ft) and forms a lignotuber. It has smooth, sometimes powdery white, cream-coloured or pale grey bark that is shed from the tree in thin scales. The adult leaves are arranged alternately, lance-shaped, wavy and twisted, the same shade of glossy green on both sides, 70–175 mm (2.8–6.9 in) long and 7–25 mm (0.28–0.98 in) wide, tapering to a flattened or channelled petiole 5–22 mm (0.20–0.87 in) long. The flowers are borne on the ends of branchlets on a branched peduncle, each branch of the peduncle with three or seven buds on pedicels 2–7 mm (0.079–0.276 in) long. Mature buds are pear-shaped to spherical, 5–6 mm (0.20–0.24 in) long and 3–4 mm (0.12–0.16 in) wide with a rounded to flattened operculum. Flowering has been observed in November and the flowers are creamy white. The fruit is a woody cup-shaped, cylindrical or barrel-shaped fruit 6–9 mm (0.24–0.35 in) long and 5–9 mm (0.20–0.35 in) wide with the valves enclosed in the fruit.[2][3][4][5]

Taxonomy and namingEdit

Corymbia torta was first formally described in 1995 by Ken Hill and Lawrie Johnson in the journal Telopea from specimens collected in 1999 by Hill and Leonie Stanberg, near Mount Jameson on the upper Drysdale River.[3][6][7] The specific epithet (torta) is from the Latin tortus meaning "twisted", referring to the adult leaves.[3]

In the same journal paper, Hill and Johnson described three subspecies and the names are accepted by the Australian Plant Census:

  • Corymbia torta subsp. allanii K.D.Hill & L.A.S.Johnson;[8][9]
  • Corymbia torat subsp. mixtifolia K.D.Hill & L.A.S.Johnson;[10][11]
  • Corymbia torta K.D.Hill & L.A.S.Johnson subsp. torta.[12][13]

Distribution and habitatEdit

This eucalypt is found in the King Leopold Ranges, Mitchell River National Park and Drysdale River National Park in the Central Kimberley and Northern Kimberley biogeographic regions It grows in skeletal sandy soils over sandstone or granite.[2][4]

Conservation statusEdit

All three subspecies of C. torta are classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife.[9][11][13]

See alsoEdit

List of Corymbia species

ReferencesEdit

  1. ^ "Corymbia torta". Australian Plant Census. Retrieved 29 February 2020.
  2. ^ a b "Corymbia torta". Euclid: Centre for Australian National Biodiversity Research. Retrieved 29 February 2020.
  3. ^ a b c Hill, Kenneth D.; Johnson, Lawrence A.S. (13 December 1995). "Systematic studies in the eucalypts. 7. A revision of the bloodwoods, genus Corymbia (Myrtaceae)". Telopea. 6 (2–3): 418–423. doi:10.7751/telopea19953017.
  4. ^ a b "Corymbia torta". FloraBase. Western Australian Government Department of Parks and Wildlife.
  5. ^ "Corymbia torta K.D. Hill & L.A.S. Johnson, Telopea 6: 418 (1995)". Eucalink. Royal Botanic Garden, Sydney. Retrieved 13 October 2016.
  6. ^ "Corymbia sphaerica". APNI. Retrieved 26 February 2020.
  7. ^ "Stanberg, Leonie Clare (1964 - )". Council of Heads of Australasian Herbaria Australian National Herbarium. Retrieved 29 February 2020.
  8. ^ "Corymbia torta subsp. allanii". Australian Plant Census. Retrieved 29 February 2020.
  9. ^ a b "Corymbia torta subsp. allanii". FloraBase. Western Australian Government Department of Parks and Wildlife.
  10. ^ "Corymbia torta subsp. mixtifolia". Australian Plant Census. Retrieved 29 February 2020.
  11. ^ a b "Corymbia torta subsp. mixtifolia". FloraBase. Western Australian Government Department of Parks and Wildlife.
  12. ^ "Corymbia torta subsp. torta". Australian Plant Census. Retrieved 29 February 2020.
  13. ^ a b "Corymbia torta subsp. torta". FloraBase. Western Australian Government Department of Parks and Wildlife.