Australian Tropical Rainforest Plants banner
  • Species information
  • About
  • Resources
  • Home
banner
ABCDEFGHIJKLMNOPQRSTUVWXYZ

Pleurostylia opposita

Family

Celastraceae

Botanical Name

Pleurostylia opposita (Wall.) Alston

Alston, A.H.G. (1931) A Hand-book to the Flora of Ceylon 6 Suppl.: 48. Type: ?.

Synonyms

Celastrus opposita Wallich in Roxb., Fl. Indica 2: 398(1824), Type: Not designated. Elaeodendron microcarpum C.T.White & W.D.Francis, Proceedings of the Royal Society of Queensland 37: 154(1926), Type: Mt. Perry, Jas. Keys; holo: BRI.

Common name

Pleurostylia

Stem

A small tree generally less than 20 cm dbh.

Leaves

Young twigs conspicuously 4-angled. Leaf blades about 2.5-6 x 1-4 cm. Midrib raised on the upper surface. Small oil dots visible with a lens mainly on the underside of the leaf blade.

Flowers

Inflorescence about 5-7 mm long. Flowers about 3 mm diam. Sepals rounded, about 0.2-0.5 mm long. Petals elliptic or broadly ovate to orbicular, about 1.2-1.5 mm. Stamens inserted outside the disk, filaments about 0.7-0.9 mm long. Disk fleshy, cupular, crenate, about 1.8 mm diam. Ovary about 0.5 mm diam. Locules one or two.

Fruit

Fruits ellipsoid or obovoid, about 5-7 mm long. Style persistent, lateral.

Seedlings

Cotyledons ovate to elliptic, about 8-13 x 4-8 mm, midrib raised on the upper surface. Stipules small, about 1 mm long. Stems 4-angled. At the tenth leaf stage: seedling glabrous, leaves obovate, apex obtuse, base cuneate; stipules very small, triangular with toothed margins; stem 4-angled or winged. Taproot orange.

Distribution and Ecology

Occurs in NT, CYP and NEQ and also in south-eastern Queensland but not yet collected in coastal central Queensland. Altitudinal range from sea level to about 200 m. In CYP and NEQ this species usually grows in beach forest or low scrub on sand dunes close to the sea. Also occurs in New Caledonia, Malesia, Sri Lanka, India and Mozambique.

Natural History

This species may have medicinal properties. (http://www.univ-angers.fr/universite/recherche/so nas.html)

NT

X

CYP

X

NEQ

X

Shrub (woody or herbaceous, 1-6 m tall)

X

Tree

X

RFK Code

740