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Gymnosporia inermis

Family

Celastraceae

Botanical Name

Gymnosporia inermis Merr. & L.M.Perry

Merrill, E.D. & Perry, L.M. (1939) Journal of the Arnold Arboretum 20: 335. Type: New Guinea.

Synonyms

Celastrus montana Roth ex Roemer & Schultes, Syst. Veg. 5: 427(1819), Type: eastern India, B. Heyne s.n.; holo: B. Maytenus emarginata (Willd.) Ding Hou, Flora Malesiana Series I 6: 241(1966), Type: ?. Celastrus emarginata Willd., Sp. Pl. 1(2): 1128(1792), Type: eastern India. Gymnosporia montana (Roth ex Roemer & Schultes) Benth., Fl. Austral. 1: 400(1863), Type: ?.

Stem

Usually flowers and fruits as a shrub or scandent shrub 1-3 m tall but occasionally grows into a tree-top vine. Vine stem diameters to 6 cm recorded.

Leaves

Leaf blades about 30-80 x 15-45 mm, produced in a tight spiral or whorl on short burr-like shoots along the twigs. Petioles about 2-4 mm long, grooved on the upper surface. Teeth occur all along the margin of the leaf blade but the teeth are small and inconspicuous. Twigs often longitudinally ribbed or lined, sometimes with spines in the leaf axils.

Flowers

Sepals about 1 mm long. Petals oblong-obovate, about 2-3.5 mm long. Stamens inserted outside the flat disk at the base of the ovary. Staminal filaments about 1-1.2 mm long. Ovules 2 per locule.

Fruit

Capsule obovoid or subglobose, about 10-12 x 9-10 mm. Aril white, half enclosing the seed or only enclosing the base of the seed. Embryo yellow.

Seedlings

Cotyledons elliptic, about 9-10 x 6-7 mm, lateral veins not obvious. First pair of leaves simple, stipulate, margins serrate. At the tenth leaf stage: leaf blade margin toothed with about 12 teeth on each side, midrib raised on the upper surface. Stipules about 1 mm long. Stem +/- 4-angled. Spines sometimes present in the leaf axils.

Distribution and Ecology

Occurs in CYP and NEQ. Altitudinal range quite small, usually found just above sea level. Grows in beach forest just behind the mangroves. Also occurs in Malesia and Asia.

Natural History

This species has been used medicinally in India and Africa. Cribb (1981).

CYP

X

NEQ

X

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

X

Vine

X

RFK Code

3305