Eucalyptus alaticaulis

Eucalyptus alaticaulis, commonly known as the Grampians grey-gum,[3] is a tree or mallee that is endemic to a restricted area in the Grampians National Park in Australia. It has rough, fibrous bark near the base of its trunk, lance-shaped leaves, groups of about seven cylindrical buds with a cone-shaped operculum, white flowers and more or less cylindrical fruit.

Grampians grey-gum
Herbarium specimen of E. alaticaulis
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. alaticaulis
Binomial name
Eucalyptus alaticaulis
R.J.Watson & Ladiges[2]
Synonyms[2]

Eucalyptus cypellocarpa L.A.S.Johnson

Description

Eucalyptus alaticaulis is a tree or mallee growing to a height of about 20 m (70 ft) with rough, grey, fibrous bark on the lower part of the trunk and main stems. The leaves on young plants are arranged in opposite pairs, broadly lance-shaped to egg-shaped, up to 140 mm (6 in) long, 90 mm (4 in) wide and glossy green but a lighter shade on the lower side. The adult leaves are lance-shaped, 120–300 mm (4.7–12 in) long and mostly 20–45 mm (0.8–2 in) wide and have a longer petiole than the juvenile leaves. They are the same colour on both surfaces. The flower buds are arranged in groups of seven on a flattened peduncle up to 24 mm (0.9 in) long, the individual buds on a short pedicel. The buds are more or less cylindrical with a conical operculum and the flowers are white. The fruit is cylindrical to oval, about 10 mm (0.4 in) long and 9 mm (0.4 in) wide.[4]

This species was previously included in E. cypellocarpa but is shorter, has persistent bark and broader juvenile leaves.[4]

Taxonomy

Eucalyptus alaticaulis was first formally described in 1987 by R.J.Watson and Pauline Y. Ladiges and the description was published in the journal Brunonia.[2] The specific epithet (alaticaulis) is derived from the Latin words alatus meaning "winged",[5]: 858  and caulis meaning "stem" or "stalk".[5]: 750 

Distribution and habitat

The Grampians grey-gum is restricted to dry rocky slopes in the Grampian Ranges.[4]

References
  1. Fensham, R., Collingwood, T. & Laffineur, B. 2019. Eucalyptus alaticaulis. The IUCN Red List of Threatened Species 2019: e.T133374696A133374698. https://dx.doi.org/10.2305/IUCN.UK.2019-3.RLTS.T133374696A133374698.en. Downloaded on 20 September 2021.
  2. "Eucalyptus alaticaulis". APNI. Retrieved 19 February 2019.
  3. "Occurrence record: Eucalyptus alaticaulis". Atlas of Living Australia. Retrieved 19 February 2019.
  4. Messina, Andre. "Eucalyptus alaticaulis". Royal Botanic Gardens Victoria. Retrieved 19 February 2019.
  5. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press.
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