Eucalyptus formanii

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Die Hardy mallee
Eucalyptus formanii.jpg
Eucalyptus formanii in the Die Hardy Range
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. formanii
Binomial name
Eucalyptus formanii

Eucalyptus formanii, commonly known as Die Hardy mallee, [3] Forman's mallee or feather gum, [4] is a species of tree or mallee that is endemic to Western Australia. It has rough bark over most, or all of its trunk, smooth bark above, linear adult leaves, flower buds in groups of seven or nine, creamy white flowers and cup-shaped to hemispherical fruit.

Contents

buds Eucalyptus formanii buds.jpg
buds
fruit Eucalyptus formanii fruit.jpg
fruit

Description

Eucalyptus formanii is a tree or mallee that typically grows to a height of 10 m (33 ft) and forms a lignotuber. The bark on part or all of the trunk is rough, grey and fibrous or flaky, smooth creamy brown to pinkish grey and shed in scruffy ribbons above. Young plants and coppice regrowth have more or less sessile, linear leaves that are 20–45 mm (0.79–1.77 in) long and 2–4 mm (0.079–0.157 in) wide. Adult leaves are also linear, held erect, the same glossy green on both sides when mature, 35–95 mm (1.4–3.7 in) long, 2–5 mm (0.079–0.197 in) wide and sessile or on a petiole up to 10 mm (0.39 in) long. The flower buds are arranged in leaf axils in groups of seven or nine on an unbranched peduncle 4–10 mm (0.16–0.39 in) long, the individual buds on pedicels 2–3 mm (0.079–0.118 in) long. Mature buds are oval to spindle-shaped, 4–7 mm (0.16–0.28 in) long and about 3 mm (0.12 in) wide with a conical to beaked operculum. Flowering occurs between December and April and the flowers are creamy white. The fruit is a woody, cup-shaped to hemispherical capsule 3–4 mm (0.12–0.16 in) long and 4–5 mm (0.16–0.20 in) wide with the valves slightly above rim level. [3] [5] [6]

Taxonomy and naming

Eucalyptus formanii was first formally described in 1943 by Charles Gardner in the Journal of the Royal Society of Western Australia . The type specimen was collected in sand dunes near the Die Hardy Range, 175 km (109 mi) north of Southern Cross by the geologists Francis Gloster Forman and Robert Sackville Matheson. [7] [8] [9] [10] The specific epithet (formanii) honours "Francis Gloster Forman, Government Geologist of Western Australia, who brought me [C.A.Gardner] the first specimens of this plant." [10]

The Die Hardy Ranges, or Mount Geraldine, is a range of hills north of Mount Jackson where there are abandoned gold mines. In 2010, the range was declared a nature reserve. [11]

Distribution

Die Hardy mallee is found on ironstone slopes north of Bullfinch in the Coolgardie, Murchison and Yalgoo biogeographic regions of Western Australia, where it grows in sandy soils. It forms part of low woodland communities that cover a substantial part of the base of the Mount Manning Nature Reserve, occurring on flat sandy plains in broad valleys with sandy loam soil types. The low woodlands on plains are made up of 10 m (33 ft) high trees over an understorey of Triodia rigidissima . The composition of the flora is complex with several intermediate strata of tall and low shrubs consisting of Grevillea acuaria , Bossiaea walkeri and various species of Eremophila . [3] [5] [12]

Conservation status

This eucalypt is classified as "Priority Four" by the Government of Western Australia Department of Parks and Wildlife, [5] meaning that is rare or near threatened. [13] The International Union for the Conservation of Nature list it as a least concern species, noting it has a stable although severeley fragmented population of over 2,000 individuals. [1]

Use in horticulture

The fine, crowded leaves and coppicing features of this eucalypt may have ornamental value. [3]

See also

Related Research Articles

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

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Eucalyptus olivina is a species of mallee or a tree that is endemic to Western Australia. It has smooth greyish bark, linear to narrow lance-shaped adult leaves, flower buds in groups of seven or nine, creamy white flowers and short barrel-shaped to cup-shaped fruit.

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

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<i>Eucalyptus yalatensis</i> Species of plant

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

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Eucalyptus delicata is a species of tree that is endemic to Western Australia. It has rough, fibrous to scaly bark on the trunk, smooth white to greyish bark above, linear to narrow lance-shaped adult leaves, flower buds in groups of between seven and eleven, creamy white flowers and more or less spherical to barrel-shaped fruit.

Eucalyptus orthostemon, also known as diverse mallee, is a species of mallee that is endemic to the south-west of Western Australia. It has smooth coppery and greyish bark, linear adult leaves, oval to spindle-shaped buds in groups of seven, creamy white flowers and conical to cup-shaped fruit.

References

  1. 1 2 Fensham, R.; Laffineur, B.; Collingwood, T. (13 March 2019). "Jutson's Mallee Eucalyptus formanii". IUCN Red List of Threatened Species . 2019: e.T133375248A133375250. doi: 10.2305/IUCN.UK.2019-3.RLTS.T133375248A133375250.en . Retrieved 22 June 2023.
  2. ↑ "Eucalyptus formanii". Australian Plant Census. Retrieved 6 July 2019.
  3. 1 2 3 4 "Eucalyptus formanii". Euclid: Centre for Australian National Biodiversity Research. Retrieved 2 June 2020.
  4. ↑ "Forman's Mallee, Forman's Eucalyptus, Feather Gum Eucalyptus formanii". Dave's Garden. Retrieved 7 June 2017.
  5. 1 2 3 "Eucalyptus formanii". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  6. ↑ Chippendale, George M. "Eucalyptus formanii". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 7 July 2019.
  7. ↑ "Eucalyptus formanii". APNI. Retrieved 7 July 2019.
  8. ↑ "Forman, Francis Gloster (1904 - )". Council of Heads of Australasian Herbaria. Retrieved 7 July 2019.
  9. ↑ "Matheson, Robert Sackville (1913 - )". Council of Heads of Australasian Herbaria. Retrieved 7 July 2019.
  10. 1 2 Gardner, Charles Austin (1943). "Contributiones Florae Australiae Occidentalis XI". Journal of the Royal Society of Western Australia. 27: 186–187. Retrieved 7 July 2019.
  11. ↑ "Die Hardy Gold Mine, Mount Jackson Goldfield, Yilgarn Shire, Western Australia". Hudson Institute of Mineralogy. Retrieved 7 July 2019.
  12. ↑ "Introduction to National Ecological Communities endemic to Western Australia" (PDF). Department of Environment. Retrieved 7 June 2017.
  13. ↑ "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 9 July 2019.
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