Eucalyptus luculenta

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Eucalyptus luculenta
Status DECF P2.svg
Priority Two — Poorly Known Taxa (DEC)
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. luculenta
Binomial name
Eucalyptus luculenta

Eucalyptus luculenta is a species of mallee that is endemic to a small area on the south coast of Western Australia. It has smooth bark, lance-shaped to egg-shaped leaves, flower buds in groups of seven, pale yellow to white flowers and cup-shaped, barrel-shaped or cylindrical fruit.

Contents

Description

Eucalyptus luculenta is a mallee that typically grows to a height of 5 m (16 ft) and forms a lignotuber. It has smooth greyish to pink powdery bark on the trunk and branches. Young plants and coppice regrowth have stems that are more or less square in cross-section and sessile, broadly lance-shaped leaves that are 60–150 mm (2.4–5.9 in) long and 25–45 mm (0.98–1.77 in) wide. Adult leaves are arranged alternately, the same dull greyish green on both sides, lance-shaped to egg-shaped, 60–160 mm (2.4–6.3 in) long and 15–35 mm (0.59–1.38 in) wide, tapering to a petiole 14–40 mm (0.55–1.57 in) long. The flower buds are arranged in leaf axils in groups of seven on an unbranched peduncle 7–14 mm (0.28–0.55 in) long, the individual buds on pedicels 4–10 mm (0.16–0.39 in) long. Mature buds are oval to pear-shaped, 14–19 mm (0.55–0.75 in) long and 6–9 mm (0.24–0.35 in) wide with a beaked operculum 9–14 mm (0.35–0.55 in) long. Flowering has been observed in October and November and the flowers are pale yellow to white. The fruit is a woody, cup-shaped, barrel-shaped or cylindrical capsule with the valves protruding above the level of the rim. The fruit have a waxy coating but are markedly glossy underneath. [2] [3] [4]

Taxonomy and naming

Eucalyptus luculenta was first formally described in 1999 by Lawrie Johnson and Ken Hill from a specimen collected by Johnson in 1983 between the Balladonia Roadhouse and Mount Ragged. The description was published in the journal Telopea . [4] [5] The specific epithet (luculenta) is a Latin word meaning "full of light" or "bright", referring to the glossiness of the fruit underneath a waxy coating. [4] [6]

Distribution and habitat

This eucalypt is confined to the Mount Ragged area where it grows in sandy calcareous soils. [2] [3]

Conservation status

This eucalypt is classified as "Priority Two" by the Western Australian Government Department of Parks and Wildlife. [2] meaning that it is poorly known and from only one or a few locations. [7]

See also

Related Research Articles

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Eucalyptus pruiniramis, commonly known as Jingymia gum or midlands gum is a species of mallee or tree that is endemic to a small area of Western Australia. It usually has rough bark on the lower half of the trunk, smooth bark above, dull green, lance-shaped adult leaves, flower buds in groups of between seven and eleven, white flowers and cylindrical to cup-shaped fruit.

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Eucalyptus tenera, commonly known as the glazed mallee or sand mallee, is a species of mallee that is endemic to Western Australia. It has smooth bark, narrow lance-shaped to elliptical leaves, flower buds in groups of seven to eleven, lemon yellow flowers and cup-shaped to barrel-shaped fruit.

Eucalyptus tephroclada is a species of mallee that is endemic to the southwest of Western Australia. It has smooth bark, lance-shaped adult leaves, flower buds in pendent groups of nine to thirteen, pale lemon yellow flowers and barrel-shaped to cup-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 conveniens is a species of small mallee or shrub that is endemic to a small area on the west coast of Western Australia. It has smooth bark, sometimes with a short stocking of rough bark near its base, lance-shaped to egg-shaped or elliptic adult leaves, flowers buds in groups of three, whitish flowers and glaucous, barrel-shaped 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.

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Eucalyptus foliosa is a species of mallee that is endemic to Western Australia. It has a dense crown with foliage reaching to the ground, smooth greyish bark, linear to narrow lance-shaped or narrow oblong adult leaves, flower buds in groups of seven or nine, white flowers and conical to shortened hemispherical fruit. It is only known from a small area near Esperance.

Eucalyptus capitanea, commonly known as the desert ridge-fruited mallee, is a species of mallee that is endemic to South Australia. It often has rough, flaky bark on the lower part of the trunk, smooth bark above, lance-shaped adult leaves, ribbed, oval flower buds in groups of seven, cream-coloured flowers and ribbed, urn-shaped fruit.

Eucalyptus notactites, commonly known as southern limestone mallee, is a species of mallee that is endemic to the southwest of Western Australia. It has smooth, greyish bark, lance-shaped adult leaves, flower buds in groups of between eleven and fifteen, creamy white flowers and hemispherical fruit.

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

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

References

  1. ↑ "Eucalyptus luculenta". Australian Plant Census. Retrieved 18 September 2019.
  2. 1 2 3 "Eucalyptus luculenta". FloraBase . Western Australian Government Department of Parks and Wildlife.
  3. 1 2 "Eucalyptus luculenta". Euclid: Centre for Australian National Biodiversity Research. Retrieved 1 June 2020.
  4. 1 2 3 Johnson, Lawrence A.S.; Hill, Kenneth D. (1999). "Systematic studies in the eucalypts. 9. A review of the series Sociales (Eucalyptus subgenus Symphyomyrtus, Section Bisectaria, Myrtaceae)". Telopea. 8 (2): 208–209. doi: 10.7751/telopea19993001 .
  5. ↑ "Eucalyptus luculenta". APNI. Retrieved 18 September 2019.
  6. ↑ Francis Aubie Sharr (2019). Western Australian Plant Names and their Meanings. Kardinya, Western Australia: Four Gables Press. p. 243. ISBN   9780958034180.
  7. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 22 September 2019.
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