Dipterocarpus costulatus Slooten

Species

Angiosperms > Malvales > Dipterocarpaceae > Dipterocarpus

Characteristics

Vegetative parts of mature tree glabrous but for the densely shortly buff pubescent inner surface of bud-scales and stipules. Twigs and buds frequently pruinose. Twig to 7 mm ø towards the apex, somewhat compressed at first, becoming terete, smooth; stipule scars slender, prominent. Bud to 30 by 6 mm, falcate, acute, slender. Stipule to 16 by 2 cm, lorate, subacute. Leaves 12-20 by 7-14 cm, broadly elliptic to ovate, thickly coriaceous, with prominently cuneate base, obtuse to shortly acuminate, persistently folded between the 11-14 pairs of prominent nerves; tertiary nerves slender, scalariform; petiole 3-6 cm long. Raceme to 20 cm long, terete, glabrous, bearing distichous flowers at to 4 cm intervals. Flower buds to 3 by 1.5 cm. Calyx and corolla typical, calyx glabrous. Stamens c. 24, slightly shorter than the style; filaments about 1/2 length of anther, compressed, tapering; anther linear, tapering apically into the acicular appendage; appendage somewhat less than 1/2 length of anther. Ovary ovoid, densely pubescent; style columnar, pubescent except in the apical 1/4. Fruit pedicel to 6 mm long, prominent. Calyx glabrous; tube to 1.5 by 2 cm, subglobose, bearing 5 prominent flange-like tubercles medially; 2 larger calyx lobes to 20 by 4 cm, broadly lorate, obtuse, with to 6 mm wide revolute constriction at the base; 3 shorter lobes to 7 by 6 cm, suborbicular, obtuse, revolute.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Local,in lowland forest on poor soils on flat and undulating land, rarely ascending to 600 metres.
More
Local, on poor soils on flat and undulating land, rarely to 600 m.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses material oil tea 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 -

Images

Habit

Dipterocarpus costulatus habit picture by Pierre Bonnet (cc-by-sa)

Leaf

Dipterocarpus costulatus leaf picture by Pierre Bonnet (cc-by-sa)
Dipterocarpus costulatus leaf picture by Pierre Bonnet (cc-by-sa)
Dipterocarpus costulatus leaf picture by Pierre Bonnet (cc-by-sa)

Distribution

Dipterocarpus costulatus world distribution map, present in Botswana, Indonesia, Malaysia, and Singapore

Conservation status

Dipterocarpus costulatus threat status: Near Threatened

Identifiers

LSID urn:lsid:ipni.org:names:320660-1
WFO ID wfo-0000651316
COL ID 36QTP
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Dipterocarpus costulatus