Dipterocarpus confertus Slooten

Species

Angiosperms > Malvales > Dipterocarpaceae > Dipterocarpus

Characteristics

Young twig, leaf bud, stipule outside, petiole, nerves and midrib above, nervation beneath, and inflorescence persistently 1.5-3.5 mm long pale ful-vous-brown tufted hispid; leaf surface caducously so. Twig 0.8-1 cm ø apically, stout, uneven, cracked and marked by the thin amplexicaul stipule scars. Bud 1.2-2 by 1-1.7 cm, broadly ovoid, obtuse or subacute. Stipule to 5 cm long and broad, broadly ovate, obtuse, caducous. Leaves (18-)22-35 by (14-)16-22 cm, broadly obovate to orbicular, chartaceous, concave; base obtuse or subpeltate, the lamina continuing as a slight ridge above the base of the midrib; apex obtuse or shortly acuminate; nerves 9-12 pairs, well spaced, at 45° to 60°; petiole 5-6 cm long. Inflorescence to 7 cm long, subcymose, singly branched or unbranched, short, bearing few distichous flowers; bracts and bracteoles to 25 by 5 mm, linear, obtuse, sparsely tomentose, caducous. Bud to 4 by 1 cm. Calyx and corolla typical, calyx shortly tomentose. Stamens c. 25, as long as style; filaments as long as anther, applanate at base, tapering and filiform below anther; anther narrowly oblong, stout, tapering; appendage almost as long as anther, stout at base, tapering and filiform at apex. Ovary small, ovoid-conical, densely pubescent; stylopodium indistinct; style 3 times as long as ovary, columnar, slender, tomentose except at apex. Fruit subsessile; calyx tube densely pale fulvous long tomentose, c. 3 by 1.7 cm, narrowly obovoid, with 5 indistinct ridges when mature, tapering basally to the pedicel, only slightly constricted apically; 2 long lobes to 14 by 3 cm, glabrous within, sparsely tomentose outside, oblong-lanceolate, obtuse, tapering to the constricted but non-revolute base, prominently 3-nerved; 3 shorter lobes to 1.7 by 0.7 cm, oblong, recurved distally.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.18 - 1.14
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

An upper canopy and emergent tree in mixed Dipterocarp forests, where it is sometimes common on low hills and undulating land, at elevations below 800 metres.
More
Mixed Dipterocarp forests below 800 m, sometimes common on low hills and undulating land.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 10-12

Usage

Uses material oil timber wood
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Dipterocarpus confertus world distribution map, present in Brunei Darussalam and Malaysia

Conservation status

Dipterocarpus confertus threat status: Near Threatened

Identifiers

LSID urn:lsid:ipni.org:names:320653-1
WFO ID wfo-0000651310
COL ID 36QTF
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Dipterocarpus confertus