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Cleland's blackbutt
Eucalyptus clelandiorum growing north of Kalgoorlie
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. clelandiorum
Binomial name
Eucalyptus clelandiorum
( Maiden) Maiden [2]
Synonyms [2]
  • Eucalyptus clelandi Maiden orth. var.
  • Eucalyptus clelandii H.Eichler orth. var.
  • Eucalyptus goniantha var. clelandi Maiden orth. var.
  • Eucalyptus goniantha var. clelandiorum Maiden

Eucalyptus clelandiorum, commonly known as Cleland's blackbutt [3] is a species of mallet that is endemic to the South West region of Western Australia. It has hard, black, crumbly bark on the lower half of its trunk, smooth bark above, narrow lance-shaped adult leaves, flower buds arranged in groups of seven, nine or eleven, white flowers and cup-shaped fruit.

flower buds
fruit

Description

Eucalyptus clelandiorum is a mallet that typically grows to a height of 10 m (33 ft) and does not form a lignotuber. It has hard, black, crumbly bark on about the lower half of the trunk, and smooth pale grey to pinkish bark above. The leaves on young plants and on coppice regrowth are glaucous, broadly lance-shaped to egg-shaped, up to 80 mm (3.1 in) long and 35 mm (1.4 in) wide. The adult leaves are the same dull greyish green or glaucous on both sides, narrow lance-shaped, 80–155 mm (3.1–6.1 in) long and 9–25 mm (0.35–0.98 in) wide. The flower buds are arranged in groups of seven, nine or eleven in leaf axils on a peduncle 6–15 mm (0.24–0.59 in) long, the individual buds on a pedicel 1–5 mm (0.039–0.197 in) long. Mature buds are oval, 7–12 mm (0.28–0.47 in) long and 4–7 mm (0.16–0.28 in) wide and glaucous with a beaked operculum 4–6 mm (0.16–0.24 in) long. Flowering mainly occurs from August to November and the flowers are white. The fruit is a woody cup-shaped capsule 5–9 mm (0.20–0.35 in) long and 5–8 mm (0.20–0.31 in) wide on a pedicel 1–6 mm (0.039–0.236 in) long. [3] [4] [5]

Taxonomy

Cleland's blackbutt was first formally described in 1911 by Joseph Maiden who gave it the name Eucalyptus goniantha var. clelandiorum and published the description in the Journal of the Natural History and Science Society of Western Australia. [6] [7] In 1912, Maiden raised the variety to species status in his book A Critical Revision of the Genus Eucalyptus. [8] [9]

The specific epithet (clelandiorum) honours "Mr. A.F. Cleland, Civil Engineer of Kurrawang" and his nephew, " Dr. J. Burton Cleland". [7] (Maiden published the name as Eucalyptus clelandi but indicated that the name honoured two men. The name is therefore corrected to Eucalyptus clelandiorum, in accordance with Article 60.8 of the Shenzhen Code.) [8] [10]

Distribution

Eucalyptus clelandiorum mostly grows in open woodland from east of Cue to near Lake Biddy in the Avon Wheatbelt, Coolgardie, Great Victoria Desert, Murchison and Yalgoo biogeographic regions of Western Australia. [3] [5]

Conservation status

This mallet is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife. [3]

See also

References

  1. ^ Fensham, R.; Collingwood, T.; Laffineur, B. (2019). "Eucalyptus clelandiorum". IUCN Red List of Threatened Species. 2019: e.T137627383A137627552. doi: 10.2305/IUCN.UK.2019-3.RLTS.T137627383A137627552.en. Retrieved 22 September 2021.
  2. ^ a b "Eucalyptus clelandiorum". Australian Plant Census. Retrieved 1 May 2019.
  3. ^ a b c d "Eucalyptus clelandiorum". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ^ "Eucalyptus clelandiorum". Euclid: Centre for Australian National Biodiversity Research. Retrieved 4 June 2020.
  5. ^ a b Chippendale, George M. "Eucalyptus clelandii". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 1 May 2019.
  6. ^ "Eucalyptus goniantha var. clelandiorum". APNI. Retrieved 1 May 2019.
  7. ^ a b Maiden, Joseph (1911). "Notes on Western Australian eucalypts, including description of new species". Journal of the Natural History & Science Society of Western Australia. 3 (2): 176–177. Retrieved 1 May 2019.
  8. ^ a b "Eucalyptus clelandiorum". APNI. Retrieved 1 May 2019.
  9. ^ Maiden, Joseph (1912). A critical revision of the genus Eucalyptus (Volume 2). Sydney: N.S.W. Government Printer. p. 189. Retrieved 8 March 2019.
  10. ^ "Chapter VIII, Section 1, Article 60". International Association for Plant Taxonomy. Retrieved 17 April 2020.
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