Horsfieldia splendida W.J.deWilde, Gard. Bull. Sing. 38 (1986)
Latin for 'beautiful'.
Understorey tree up to 20(-30) m tall and 28 cm dbh. Stem with red sap. Stipules
absent. Leaves alternate, simple, penni-veined, densely hairy below. Flowers ca.
2 mm diameter, green-yellow, placed in panicles. Fruits ca. 23 mm long,
yellow-red, hairy, dehiscent capsules. Seeds with undivided aril.
Tree 10-20(-30) m. Twigs 4-7 mm diameter, late glabrescent, at first with dense
woolly, yellow-brown to rusty hairs 1-1.5 mm; bark dark brown or blackish, coarsely
longitudinally striate and fissured, later on cracking and +/- flaking; lenticels few, indistinct.
Leaves membranous to chartaceous, elliptic-oblong to oblong-oblanceolate, 18-
45 by 6.5-17 cm, base almost rounded to attenuate, apex acute-acuminate; upper surface
drying dull olivaceous-brown, early glabrescent, lower surface with conspicuous rather
dense, flossy, stalked-dendroid hairs, +/- evenly spaced and of about the same size, hairs
0.5-1.5 mm long; dots absent: midrib late glabrescent above, rather flat; nerves 18-25
pairs, sunken above, lines of interarching distinct, regular; venation lax, distinct; petiole
12-17 by 3.5-5 mm, pubescent; leaf bud 15(-20) by 5 mm. with hairs 1-1.5 mm long.
Inflorescences with dense woolly dendroid hairs 1-1.5 mm; in male: many-flowered,
4 (or 5) times branched, 6-16 by 3-12(-16) cm, peduncle 0.5-2 cm; in female: rather
few-flowered. 3-5 cm long; bracts +/- ovate-triangular, acuminate, 0.4-1 cm long, densely
pubescent, caducous; flowers in male 3-8 in loose clusters, perianth 3- (or 4-)lobed,
glabrous or thinly pubescent, pedicel slender, glabrous or subglabrescent, hairs 0.3-0.5
mm long, not articulated. Male flowers: pedicel 1-1.5 mm long; buds (depressed) subglobose,
1.4-2 by 1.6-2 mm, cleft 1/3 to nearly 1/2, lobes 0.2 mm thick; androecium
depressed-subglobose, +/- impressed in the centre, circular or faintly triangular in cross
section, 0.5-0.6 by 1-1.3 mm: thecae 16-20, completely sessile, incurved
towards the apex; column broad, solid, with small apical hollow to l/3(-l/2); androphore
+/- slender, 0.3(-0.5) mm long. Female flowers (from remnants under fruits): pedicel
0.5-1 mm long, pubescent; buds 3 by 2.5 mm, 3- or 4-lobed, pubescent; ovary ovoid-ellipsoid,
pubescent; stigma minutely 2-lobed. 0. 1 mm high. Fruits 2-7 per infructescence,
broadly ovoid-ellipsoid, 2-3 by 1.5-2 cm, pubescent (hairs 0.5 mm), without
lenticels or tubercles; pericarp 3 mm thick; fruiting pedicel 1 mm long; perianth persistent.
[from Flora Malesiana]
In undisturbed to slightly disturbed (open) mixed dipterocarp, keranga,
coastal and sub-montane forests up to 1500 m altitude. On ridges and hillsides
with sandy soils, but also on limestone.
Borneo: Dara-dara, Darah-darah, Kumpang, Umpa mpomot.