Prunus lamponga

Primary tabs

Prunus lamponga

Description

Small trees, rarely more than 15 m high, bark smooth, brown or greyish. Leaves elliptic to oblong, 7-18(-21) by 3-6(-9) cm, base acute to rounded, margin often somewhat revolute, apex (usually shortly) acuminate, herbaceous, with 4—9(—11) pairs of nerves, often rather wide apart, venation usually almost invisible, glabrous on both sides when mature, puberulous only when very young, rarely more permanently short-hairy on both sides, basal glands 2(-4), flat. Stipules linear, 3-7 by 0.5-1 mm, free, sometimes with marginal glands. Flowers sometimes male. Stamens 17-32(-40), filaments up to 4 mm, glabrous, anthers up to 0.5 mm long. Ovary sparsely to densely hairy, rarely glabrous, style up to 4 mm long. Fruits ellipsoid to (compressed) subglobular, 13-24 by 10-20 (by 12-14) mm, the length including an apical point or more distinct beak of 4 mm length, exocarp usually sparsely hairy, rarely glabrous, rarely densely hairy, colour unknown, endocarp glabrous inside. Seed with glabrous testa.

Distribution

Asia-Tropical: Borneo present; Malaya present; Sumatera (Sumatera present), Bangka present
Malaya, Sumatra, Bangka, Borneo.

Notes

See the note under P. grisea var. tomentosa for a comparison with a group of specimens from Sarawak, which have fruits matching the present species, but different leaves.
Recently collected specimens have not supported the recognition of a variety with more hairy and also large leaves, as suggested in Kalkman, l.c. The transitions to small and glabrous leaves are gradual.

Citation

Prance & Whitmore 1973 – In: Tree Fl. Malaya: 338
Ridley 1922 – In: Fl. Mai. Penins.: 675