Melicope littoralis , commonly known as shade tree,[2] is a species of shrub or small tree in the family Rutaceae and is endemic to Norfolk Island. It has trifoliate leaves and small white flowers borne in leaf axils in panicles of a few to many flowers.
| Shade tree | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Sapindales |
| Family: | Rutaceae |
| Genus: | Melicope |
| Species: | M. littoralis
|
| Binomial name | |
| Melicope littoralis | |
| Synonyms[1] | |
| |
Description
editMelicope littoralis is a shrub or tree that typically grows to a height of 4–5 m (13–16 ft). It has mostly trifoliate leaves arranged in opposite pairs and 130–350 mm (5.1–13.8 in) long on a petiole 3–10 mm (0.12–0.39 in) long, the leaflets elliptical to egg-shaped, 100–240 mm (3.9–9.4 in) long and 60–130 mm (2.4–5.1 in) wide. The flowers are arranged in groups of a few to many, in panicles 20–160 mm (0.79–6.30 in) long and 15–60 mm (0.59–2.36 in) wide on a peduncle 10–80 mm (0.39–3.15 in) long. The flowers are borne on pedicels 1–2 mm (0.039–0.079 in) long, the sepals egg-shaped, 2–3 mm (0.079–0.118 in) long and joined at the base, the petals white, 4–5 mm (0.16–0.20 in) long and there are four stamens. The fruit consists of up to four follicles up to 12 mm (0.47 in) long and fused at the base, the seeds about 6 mm (0.24 in) long.[3]
Taxonomy
editThe shade tree was first formally described in 1833 by Stephan Endlicher who gave it the name Euodia littoralis and published the description in his book Prodromus Florae Norfolkicae.[3][4][5] In 2001, Thomas Gordon Hartley changed the name to Melicope littoralis in the journal Allertonia.[6]
Distribution and habitat
editThis species is endemic to Norfolk Island where it grows in coastal and inland forest. It is most often seen in the Norfolk Island National Park.[3][7]
Conservation status
editMelicope littoralis is listed as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999.[8]
References
edit- ^ a b "Melicope littoralis". Australian Plant Census. Retrieved 25 July 2020.
- ^ "15 Vulnerable Norfolk Island Flora Species". Australian Government Department of Agriculture, Water and the Environment. Retrieved 27 July 2020.
- ^ a b c Hartley, Thomas Gordon (February 2001). "On the Taxonomy and Biogeography of Euodia and Melicope (Rutaceae)". Allertonia. 8 (1): 96–97. JSTOR 23189298.
- ^ "Euodia littoralis". APNI. Retrieved 27 July 2020.
- ^ Endlicher, Stephan (1833). Prodromus Florae Norfolkicae. pp. 86–87. Retrieved 27 July 2020.
- ^ "Melicopoe littoralis". APNI. Retrieved 27 July 2020.
- ^ Coyne, Peter (December 2011). Norfolk Island's fascinating flora. Belconnen, A.C.T.: Petaurus Press. p. 79. ISBN 9780980652826.
- ^ "SPRAT profile - Melicope littoralis". Australian Government Department of Agriculture, Water and the Environment. Retrieved 27 July 2020.