Eucalyptus brachycalyx

Eucalyptus brachycalyx, commonly known as gilja or Chindoo mallee,[2] is a small tree or a mallee that is endemic to southern Australia.

flowers and buds
fruit

Gilja
Eucalyptus brachycalyx near Whyalla
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Myrtaceae
Genus: Eucalyptus
Species:
E. brachycalyx
Binomial name
Eucalyptus brachycalyx
Synonyms[1]
  • Eucalyptus brachycalyx Blakely var. brachycalyx
  • Eucalyptus brachycalyx var. chindoo Blakely
  • Eucalyptus brachycalyx var. protrusa (J.M.Black) H.Eichler
  • Eucalyptus incrassata var. protrusa J.M.Black

Description

Eucalyptus brachycalyx is a tree that typically grows to a height of 10 metres (33 ft) or a mallee to 4 metres (13 ft) and forms a lignotuber. It has grey or grey-brown rough, shortly fibrous bark that is persistent on the trunk and larger branches. The upper bark is smooth, white to grey or pinkish above. Young plants and coppice regrowth have stems that are square in cross-section and leaves that are arranged in opposite pairs near the ends of the branches, then alternate, lance-shaped, 35–82 mm (1.4–3.2 in) long, 10–38 mm (0.4–1 in) wide and have a petiole. Adult leaves are narrow lance-shaped, 50–110 mm (2.0–4.3 in) long, 5–20 mm (0.2–0.8 in) wide on a petiole 5–20 mm (0.20–0.79 in) long and the same glossy green on both sides. The flower buds are arranged in groups of seven, nine or eleven on a peduncle 4–15 mm (0.16–0.59 in) long, the individual flowers sessile or on a pedicel up to 5 mm (0.20 in) long. The mature flower buds are green or yellow to reddish brown, oval, oblong or pear-shaped, 5–10 mm (0.20–0.39 in) long and 3–6 mm (0.1–0.2 in) wide with a rounded to conical operculum. Flowering occurs between January and April or between October and December and the flowers are white. The fruit is a woody, cup-shaped, conical, hemispherical or barrel-shaped capsule 4–8 mm (0.16–0.31 in) long, 5–8 mm (0.2–0.3 in) wide with the valves level with the rim or slightly longer.[3][4][5]

Taxonomy

Eucalyptus brachycalyx was first formally described by the botanist William Blakely and the description was published in his book Key Eucalypts.[6] The specific epithet (brachycalyx) is from the Greek brachys meaning "short" and calyx meaning "cup" or "calyx", referring to the small buds.[4][7]

Distribution

Gilja is found on sand dunes and limestone plains along the south coast in the Goldfields-Esperance region extending from the Fitzgerald River National Park in the west to the South Australian border.[3] In South Australia it is found along the southern coast from the eastern edge of the Nullarbor Plain extending through the Eyre Peninsula, Yorke Peninsula and Fleurieu Peninsula along the south coast extending north into the Flinders Ranges and Gawler Range.[8]

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See also

References
  1. "Eucalyptus brachycalyx". Australian Plant Census. Retrieved 22 March 2019.
  2. "Eucalyptus brachycalyx Blakely". Atlas of Living Australia. Global Biodiversity Information Facility. Retrieved 26 November 2017.
  3. "Eucalyptus brachycalyx". FloraBase. Western Australian Government Department of Parks and Wildlife.
  4. "Eucalyptus brachycalyx Gilja, Chindoo mallee". Euclid: Centre for Australian National Biodiversity Research. Retrieved 22 March 2019.
  5. Chippendale, George M. "Eucalyptus brachycalyx". Australian Biological Resources Study, Department of the Environment and Energy, Canberra. Retrieved 22 March 2019.
  6. "Eucalyptus brachycalyx". APNI. Retrieved 22 March 2019.
  7. Francis Aubie Sharr (2019). Western Australian Plant Names and their Meanings. Kardinya, Western Australia: Four Gables Press. p. 149. ISBN 9780958034180.
  8. "Eucalyptus brachycalyx (Myrtaceae) Gilja". Seeds of South Australia. Government of South Australia. Retrieved 26 November 2017.
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