Eucalyptus spreta

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Eucalyptus spreta
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. spreta
Binomial name
Eucalyptus spreta

Eucalyptus spreta is a species of mallet or marlock that is endemic to the south coast of Western Australia. It has smooth bark, narrow lance-shaped to curved adult leaves, flower buds in groups of seven, white flowers and cup-shaped fruit.

Contents

Description

Eucalyptus spreta is a mallet or marlock that typically grows to a height of 4–10 m (13–33 ft) and does not form a lignotuber. Young plants have dull greyish green, egg-shaped to lance-shaped leaves that are 60–90 mm (2.4–3.5 in) long and 13–20 mm (0.51–0.79 in) wide and petiolate. Adult leaves are the same shade of glossy green on both sides, narrow lance-shaped to curved, 70–130 mm (2.8–5.1 in) long and 7–20 mm (0.28–0.79 in) wide tapering to a petiole 12–20 mm (0.47–0.79 in) long. The flower buds are arranged in leaf axils in groups of seven on an unbranched peduncle 5–13 mm (0.20–0.51 in) long, the individual buds on pedicels 1–5 mm (0.039–0.197 in) long. Mature buds are oval to cylindrical, 7–11 mm (0.28–0.43 in) long and 4–5 mm (0.16–0.20 in) wide with a conical to beaked operculum about the same length as the floral cup. Flowering has been recorded in March and the flowers are white. The fruit is a woody, cup-shaped capsule 4–7 mm (0.16–0.28 in) long and wide with the valves enclosed below rim level. [2] [3] [4]

Taxonomy and naming

Eucalyptus spreta was first formally described in 2001 by Lawrie Johnson and Ken Hill in the journal Telopea from specimens collected 60 km (37 mi) east of Norseman in 1983. [3] [5] The specific epithet (spreta) is from the Latin word spretus, (the past participle of spreno) meaning "separated" or "removed", referring to the isolated distribution of this species from the similar E. pileata . [3]

Distribution and habitat

This mallet grows in woodland in flat areas with calcareous loam or red sand soil types. It is found to the south and east of Norseman to near Balladonia in the Coolgardie, Mallee and Nullarbor biogeographic regions. [3] [4]

Conservation status

This eucalypt is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife. [4]

See also

Related Research Articles

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

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Eucalyptus optima, is a species of small to medium-sized tree or a mallet that is endemic to a small area in the south of Western Australia. It has smooth white to greyish bark, sometimes with rough black bark on the base of the trunk, lance-shaped adult leaves, flower buds in groups of seven or nine, pale yellow flowers and cup-shaped, hemispherical or urn-shaped fruit.

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Eucalyptus ravida is a species of small mallet that is endemic to Western Australia. It has smooth, shiny bark, lance-shaped adult leaves, flower buds in groups of seven, white flowers and conical to hemispherical fruit.

Eucalyptus singularis is a species of mallet that is endemic to Western Australia. It has smooth bark, sometimes with ribbons of rough bark at the base, lance-shaped adult leaves, flower buds usually in groups of seven, pale yellow flowers and cylindrical to barrel-shaped fruit.

Eucalyptus tenuis is a species of slender mallet that is endemic to the southwest of Western Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of three, creamy white flowers and conical, cup-shaped or bell-shaped fruit.

Eucalyptus tortilis is a species of mallet and a gimlet that is endemic to the southwest of Western Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers and hemispherical to cup-shaped fruit.

Eucalyptus urna, commonly known as merrit, is a species of mallet or marlock that is endemic to southern areas of Western Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of seven to thirteen, creamy yellow to white flowers and urn-shaped fruit.

Eucalyptus vegrandis, commonly known as the Ongerup mallee, is a species of mallee that is endemic to the south-west of Western Australia. It has smooth bark, linear to lance-shaped adult leaves, flower buds in groups of seven, creamy white flowers and cup-shaped or conical fruit.

Eucalyptus creta, commonly known as the large-fruited gimlet, is a species of mallet or tree that is endemic to Western Australia. It has smooth, shiny bark, lance-shaped adult leaves, flower buds in groups of three in leaf axils, relatively large white to creamy yellow flowers, and broadly hemispherical to bell-shaped fruit.

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

Eucalyptus diptera, commonly known as the two-winged gimlet, is a mallet that is endemic to the south-west of Western Australia. It has smooth greenish to brownish bark, linear to lance-shaped adult leaves, flower buds in groups of three, each with two wings along the sides, creamy white to pale lemon-coloured flowers and cup-shaped to hemispherical fruit, also with two wings on the sides.

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

Eucalyptus extensa is a species of mallet that is endemic to Western Australia. It has smooth bark, lance-shaped adult leaves, flower buds in groups of seven, yellowish green flowers and hemispherical fruit with the valves extended well beyond the level of the rim.

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

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Eucalyptus alipes is a mallet that is endemic to the south-west of Western Australia. It has smooth grey to light brown or bronze bark, linear to narrow elliptic leaves, oval to spindle-shaped buds with a long, narrow operculum and conical fruits.

References

  1. "Eucalyptus spreta". Australian Plant Census. Retrieved 29 December 2019.
  2. "Eucalyptus spreta". Euclid: Centre for Australian National Biodiversity Research. Retrieved 29 December 2019.
  3. 1 2 3 4 Johnson, Lawrence A.S.; Hill, Kenneth D. (2001). "Systematic studies in the eucalypts. 11 - New taxa and combinations in Eucalyptus Section Dumaria (Myrtaceae)". Telopea. 9 (2): 294–296.
  4. 1 2 3 "Eucalyptus spreta". FloraBase . Western Australian Government Department of Parks and Wildlife.
  5. "Eucalyptus spreta". APNI. Retrieved 29 December 2019.