Eucalyptus pauciflora subsp. acerina

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Snow gum
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
Subspecies:
E. p. subsp. acerina
Trinomial name
Eucalyptus pauciflora subsp. acerina

Eucalyptus pauciflora subsp. acerina, commonly known as snow gum, [2] is a mallee or small tree that is endemic to a small area of Victoria, Australia. It has smooth, shiny bark, glossy green lance-shaped to egg-shaped leaves, flower buds in groups of between nine and fifteen, white flowers and hemispherical or conical fruit. It differs from other subspecies of E. pauciflora in having a dense crown and no parts that are glaucous.

Contents

Description

Eucalyptus pauciflora subsp. acerina is a mallee or tree that typically grows to a height of 12 m (39 ft) and forms a lignotuber. It has smooth, shiny, white, cream-coloured, grey and green bark that is shed in ribbons. Young plants and coppice regrowth have dull bluish green, egg-shaped to elliptic leaves that are 30–80 mm (1.2–3.1 in) long and 20–50 mm (0.79–1.97 in) wide and petiolate. Adult leaves are egg-shaped to lance-shaped or elliptical, 55–125 mm (2.2–4.9 in) long and 10–30 mm (0.39–1.18 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 between nine and fifteen on an unbranched peduncle 2–7 mm (0.079–0.276 in) long, the individual buds on pedicels up to 2 mm (0.079 in) long. Mature buds are oval to pear-shaped, about 5 mm (0.20 in) long and 4 mm (0.16 in) wide with a rounded operculum. Flowering has been recorded in January and the flowers are white. The fruit is a woody hemispherical or conical capsule 5–6 mm (0.20–0.24 in) long and 5–10 mm (0.20–0.39 in) wide with the valves near rim level. Subspecies acerina differs from others in the species in having a dense crown and no glaucous parts. [2] [3] [4]

Taxonomy and naming

Eucalyptus pauciflora subsp. acerina was first formally described in 1994 by Kevin James Rule in the journal Muelleria , from material collected on Mount Erica in Baw Baw National Park. [4] [5] The epithet (acerina) is from Latin, referring to the absence of surface wax on adult plants. [4]

Distribution and habitat

This subspecies is only known from the Baw Baw plateau and the nearby Mount Useful. [2] [3]

Related Research Articles

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

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

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

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

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

Eucalyptus capillosa, commonly known as wheatbelt wandoo, or mallee wandoo, is a species of tree or mallee that is endemic to Western Australia. It has smooth, grey bark, lance-shaped to elliptic adult leaves, spindle-shaped flower buds in groups of nine to thirteen, white flowers and barrel-shaped to cylindrical fruit.

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

Eucalyptus georgei, commonly known as Hyden blue gum, is a species of tree or mallet that is endemic to Western Australia. It has smooth bark, glossy green, lance-shaped adult leaves, glaucous flower buds in groups of between seven and eleven, creamy white flowers and conical to cup-shaped fruit.

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

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Eucalyptus phoenix, commonly known as brumby mallee-gum, is a species of mallee that is endemic to a restricted area in Victoria, Australia. It has smooth white to greyish bark, glossy green, lance-shaped adult leaves, flower buds in groups of between five and eleven, white flowers and hemispherical fruit.

<i>Eucalyptus pauciflora <span style="font-style:normal;">subsp.</span> debeuzevillei</i> Subspecies of eucalyptus

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Eucalyptus pauciflora subsp. hedraia, commonly known as snow gum, is a mallee or small tree that is endemic to a small area of Victoria, Australia. It has smooth bark, branchlets that are often glaucous, glossy green lance-shaped to egg-shaped or elliptical adult leaves, flower buds in groups of between eleven and fifteen, white flowers and hemispherical or cup-shaped fruit. It differs from other subspecies of E. pauciflora in having larger, sessile, glaucous buds and broader, hemispherical fruit.

Eucalyptus pauciflora subsp. parvifructa is a mallee or small tree that is endemic to a small area of Victoria, Australia. It has smooth bark, slightly glaucous branchlets, glossy green, lance-shaped adult leaves, flower buds usually in groups of seven, white flowers and hemispherical or cup-shaped fruit. It differs from other subspecies of E. pauciflora in having a smaller habit and smaller leaves, flower buds and fruit.

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

Eucalyptus pauciflora subsp. niphophila, commonly known as snow gum, is a small tree or large shrub that is native to a few mountain peaks in eastern Australia. It has smooth bark, glossy green, lance-shaped to egg-shaped or elliptical leaves, flower buds in groups of between nine and fifteen, white flowers and cup-shaped, hemispherical or conical fruit. It differs from other subspecies of E. pauciflora in having more delicate, pedicellate flower buds and smaller leaves.

<i>Eucalyptus pauciflora <span style="font-style:normal;">subsp.</span> pauciflora</i> Species of plant

Eucalyptus pauciflora subsp. pauciflora, commonly known as snow gum, cabbage gum or white sally is a tree or mallee that is endemic to eastern Australia. It has smooth bark, glossy green, lance-shaped, curved or elliptical leaves, flower buds in groups of between nine and fifteen, white flowers and cup-shaped, hemispherical or conical fruit.

References

  1. "Eucalyptus pauciflora subsp. acerina". Australian Plant Census. Retrieved 13 December 2019.
  2. 1 2 3 "Eucalyptus pauciflora subsp. acerina". Euclid:Centre for Australian National Biodiversity Research. Retrieved 13 December 2019.
  3. 1 2 Brooker, M. Ian H.; Slee, Andrew V. "Eucalyptus pauciflora subsp. acerina". Royal Botanic Gardens Victoria. Retrieved 13 December 2019.
  4. 1 2 3 Rule, Kevin James (1994). "Three new endemic subspecies of snow gum for Victoria and notes on the tasonomy of the informal superspecies pauciflora L.D.Pryor and L.A.S.Johnson". Muelleria. 8 (2): 223–227. Retrieved 13 December 2019.
  5. "Eucalyptus pauciflora subsp. acerina". APNI. Retrieved 13 December 2019.