Acronychia acuminata

Acronychia acuminata, commonly known as Thornton aspen,[2] is a species of shrub or small rainforest tree that is endemic to north-eastern Queensland. It has simple leaves on stems that are more or cylindrical, flowers in small groups in leaf axils and fleshy, oval to spherical fruit.

Thornton aspen
Near Threatened  (NCA)
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Genus: Acronychia
Species:
A. acuminata
Binomial name
Acronychia acuminata

Description

Acronychia acuminata is a tree that typically grows to a height of 5–8 m (16–26 ft) but flowers when only shrub-sized. It has more or less cylindrical stems and simple, glabous, elliptical leaves 90–150 mm (3.5–5.9 in) long and 30–50 mm (1.2–2.0 in) wide on a petiole 15–35 mm (0.59–1.38 in) long. The flowers are arranged in small groups about 15 mm (0.59 in) long in leaf axils, each flower on a pedicel 1–2 mm (0.039–0.079 in) long. The four sepals are about 1.2 mm (0.047 in) wide, the four petals about 3.5 mm (0.14 in) long and the eight stamens alternate in length. Flowering occurs in July and the fruit is a fleshy, oval or spherical drupe 12–13 mm (0.47–0.51 in) long.[3][4]

Taxonomy

Acronychia acuminata was first formally described in 1974 by Thomas Gordon Hartley in the Journal of the Arnold Arboretum from specimens collected between the Daintree and Bloomfield Rivers.[5][6]

Distribution and habitat

Thornton Aspen grows in rainforest between the Bloomfield Range and Daintree Range, at an altitudes of about 600 m (2,000 ft).[3]

Conservation status

Thornton aspen is classified as "near threatened" under the Queensland Government Nature Conservation Act 1992.[2]

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References
  1. "Acronychia acuminata". Australian Plant Census. Retrieved 2 July 2020.
  2. "Species profile - Acronychia acuminata (acid berry)". Queensland Government Department of Environment and Science. Retrieved 1 July 2020.
  3. Hartley, Thomas G.; Wilson, Annette J.G. (ed.) (2013). Flora of Australia (Volume 26). Canberra: Australian Biological Resources Study. p. 111. Retrieved 2 July 2020.CS1 maint: extra text: authors list (link)
  4. "Acronychia acuminata". Australian National Botanic Gardens - Australian Tropical Rainforest Plants. Retrieved 2 July 2020.
  5. "Acronychia acuminata". APNI. Retrieved 2 July 2020.
  6. Hartley, Thomas G. (1974). "A revision of the genus Acronychia (Rutaceae)". Journal of the Arnold Arboretum. 55 (3): 498. Retrieved 2 July 2020.
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