Prunus A
Content
Description
Trees up to 25 m high and 30 cm diam., bark light to darkbrown, smooth.
Leaves elliptic, 14-17 by 8-10 cm, base rounded to truncate, rarely more acute, apex shortly acuminate to rounded, herbaceous, with 8-10 pairs of nerves, venation transverse, not very conspicuous, glabrous above, sparsely short-hairy below, basal glands 2, deeply hollowed and bulging above, situated in a contraction of the leaf-basae.
Stipules ovate, sometimes oblique, 6-9 by 1.5-3 mm, free(?), with glands on margin and (often?) with 1-3 flat to slightly hollowed glands on the outer surface, sparsely hairy outside.
Inflorescence a compound raceme, in axils of leaves or scars, up to 10 cm long, with up to 4 side-branches of 4-6 cm long, rachis sparsely short-hairy, pedicels up to 1 mm long.
Flowers sometimes male.
Stamens 20-25, filaments up to 3.5 mm, glabrous or with few hairs at base, anthers 0.2 mm long.
Ovary glabrous, style up to 4 mm long, pistillode in male flowers small.
Fruits (only young ones seen) probably globular or transversely ellipsoid, 8 by 10 mm when immature, glabrous.
Seed with glabrous testa (when young).
Distribution
Asia-Tropical: Borneo present (Sabah present, Sarawak present)
Borneo, seen from Sarawak and Sabah.
Notes
The leaves of the six collections, here indicated as Prunus A (belonging to sect Mesopygeum), are of the same kind as those of Prunus polystachya, having the large marsupial glands in a contraction of the leaf-base.
The young fruits present on three of the specimens do certainly not give the impression that they could grow into the large fruits as in malayana or polystachya.
The young fruits present on three of the specimens do certainly not give the impression that they could grow into the large fruits as in malayana or polystachya.