Leionema carruthersii

Leionema carruthersii is a small shrub that is endemic to southern New South Wales in Australia. It has mostly greenish-yellow flowers, distinctive stamens and lance to egg-shaped leaves.

Leionema carruthersii
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Sapindales
Family: Rutaceae
Genus: Leionema
Species:
L. carruthersii
Binomial name
Leionema carruthersii
(F.Muell.) Paul G.Wilson[1]

Description

Leionema carruthersii is a small shrub up to 1 m (3 ft 3 in) high. It has oval to lance shaped leaves about 0.7–1.2 cm (0.28–0.47 in) long, 1.5–5 mm (0.059–0.197 in) wide, rolled edges and either heart shaped or squared at the leaf base on needle-like stems that have occasional fine, weak hairs. The leaves are widely spread with a short petiole and the surface is scantily covered with soft, fine, individual hairs. The inflorescence consists of 4-10 pendulous flowers on a pedicel 2–5 mm (0.079–0.197 in) long. The yellowish-green flowers, rarely red, have distinctive, long, red stamens that are considerably longer than the 7–9 mm (0.28–0.35 in) long petals. The flowers are borne at the end of branches arising from the leaf axils or bracts. The calyces are long, cone-shaped with small, triangular lobes. The seed pod is rough with a warty surface, about 5.5 mm (0.22 in) long with two small horn-like protuberances. Flowering occurs in winter.[2][3][4]

Taxonomy and naming

Leionema carruthersii was first formally described in 1998 by Paul G. Wilson and the description was published in the journal Nuytsia.[5][6]The specific epithet (carruthersii) derivation is not known for certainty, but may have been named after Sir Joseph Carruthers who was a former Premier of New South Wales.[3]

Distribution and habitat

This species has a restricted distribution from Batemans Bay to Bega on the New South Wales south coast, growing in sclerophyll forests on granite outcrops.[2][6]

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References
  1. "Leionema carruthersii". Australian Plant Census. Retrieved 15 April 2020.
  2. "Leionema carruthersii". PlantNET NSW. Royal Botanic Gardens Sydney. Retrieved 15 April 2020.
  3. "Leionema carruthersii". Australian Native Plants Society (Australia). Retrieved 15 April 2020.
  4. Wriggley, John W.; Fagg, Murray (2001). Australian Native Plants. Louise Egerton-Read New Holland. ISBN 1876334304.
  5. "Leionema carruthersii". Australian Plant Name Index. Retrieved 16 April 2020.
  6. Wilson, Paul G. (1998). "New species and nomenclatural changes in Phebalium and related genera (Rutaceae)" (PDF). Nuytsia. 12 (2): 272. Retrieved 16 April 2020.
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