Acronychia baeuerlenii

Acronychia baeuerlenii, commonly known as Byron Bay acronychia,[2] is a species of rainforest shrub or small tree endemic to eastern Australia. It has simple, glabrous leaves, small groups of flowers and fleshy oval fruit.

Byron Bay acronychia
Acronychia baeuerlenii in the ANBG
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Genus: Acronychia
Species:
A. baeuerlenii
Binomial name
Acronychia baeuerlenii

Description

Acronychia baeuerlenii is a shrub or tree that typically grows to a height of 10 m (33 ft). Its trunk is smooth, grey about 200 mm (7.9 in) in diameter and has more or less cylindrical young branchlets. The leaves are arranged in opposite pairs, simple, glossy green, glabrous and elliptical, 50–110 mm (2.0–4.3 in) long and 20–45 mm (0.79–1.77 in) wide on a petiole 5–18 mm (0.20–0.71 in) long. The flowers are white or cream-coloured and arranged in leaf axils in small cymes 30–70 mm (1.2–2.8 in) long, each flower on a glabrous pedicel 4–9.5 mm (0.16–0.37 in) long. The four sepals are 1.5–2.5 mm (0.059–0.098 in) wide and the four petals 8.5–14 mm (0.33–0.55 in) long and there are eight stamens. Flowering occurs between October and February and the fruit is a fleshy, creamy to light green, oval, four-celled drupe 9–15 mm (0.35–0.59 in) in diameter with eight ribs. The fruit matures between March and May and each cell contain one or two sticky black seeds 3–5 mm (0.12–0.20 in) long.[2][3][4]

Taxonomy

Acronychia baeuerlenii was first formally described in 1974 by Thomas Gordon Hartley in the Journal of the Arnold Arboretum from specimens collected near Burringba in 1898.[5][6]

Distribution and habitat

Byron Bay acronychia is found between the Richmond River, New South Wales in New South Wales to Lamington National Park just over the border in Queensland. It is an understorey plant in warm temperate rainforest, occasionally in sub tropical rainforest on richer alluvial or basaltic soils, up to 800 m (2,600 ft) above sea level.[2][3]

Conservation status

Byron Bay acronychia is classified as of "least concern" under the Queensland Government Nature Conservation Act 1992.[7]

Essential oils

The leaves of this species contain a number of essential oils.[8]

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References
  1. "Acronychia baeuerlenii". Australian Plant Census. Retrieved 2 July 2020.
  2. Hartley, Thomas G.; Wilson, Annette J.G. (ed.) (2013). Flora of Australia (Volume 26). Canberra: Australian Biological Resources Study. p. 110. Retrieved 2 July 2020.CS1 maint: extra text: authors list (link)
  3. Elliot, Rodger W.; Jones, David L.; Blake, Trevor (1982). Encyclopaedia of Australian Plants suitable for cultivation. (Volume 2). Port Melbourne, Victoria: Lothian Publishing. p. 318. ISBN 0-85091-143-5.
  4. Richards, P.G.; Harden, Gwen J. "Acronychia baeuerlenii T.G.Hartley". Royal Botanic Garden Sydney. Retrieved 2 July 2020.
  5. "Acronychia baeuerlenii". APNI. Retrieved 2 July 2020.
  6. Hartley, Thomas G. (1974). "A revision of the genus Acronychia (Rutaceae)". Journal of the Arnold Arboretum. 55 (3): 491–493. Retrieved 2 July 2020.
  7. "Species profile - Acronychia baeuerlenii (Byron Bay acronychia)". Queensland Government Department of Environment and Science. Retrieved 2 July 2020.
  8. Brophy, Joseph J., Robert J. Goldsack, and Paul I. Forster. "Leaf essential oils of the Australian species of Acronychia (Rutaceae)." Journal of Essential Oil Research 16.6 (2004): 597-607.
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