Cotylelobium burckii F.Heim

Species

Angiosperms > Malvales > Dipterocarpaceae > Cotylelobium

Characteristics

Twig, bud, petiole, stipules outside, midrib beneath and raceme densely shortly persistently buff tomentose, slightly scabrid; leaf evenly densely ocherous tomentose beneath. Twig c. 1.5 mm ø apically, slender, smooth. Bud 1.5-2 by 1.5 mm, small. Stipules to 8 mm long, narrowly deltoid, fugaceous. Leaves 8-12 by 3-4.5 cm, oblong-lanceolate; margin prominently revolute; base broadly cuneate or obtuse; acumen 2.5-7.5 mm long; nerves 10-12 pairs, indistinct, the intramarginal nerve comparatively straight and just within the margin; petiole 1.5-2 cm long. Panicle to 15 cm long; to 3-axillary, rarely terminal, terete or ribbed, irregularly doubly branched; bracteoles to 8 by 5 mm, elliptic, obtuse, shortly buff pubescent. Flower bud to 10 by 4 mm, ovoid-lanceolate, acute. 2 calyx lobes long, linear, obtuse; 3 short, lanceolate, acute; densely buff tomentose outside, more sparsely within. Corolla cream; petals large, narrowly oblong, obtuse, glabrous. Stamens 15, the inner 5 slightly longer than the others; filaments short, broad at base, strongly tapering; anthers narrowly oblong, reaching half length of style, with sparsely setose lateral margins; appendage to connective 1/4 as long as anther, slender. Ovary subglobose, densely tomentose; style slender, 3-4 times as long as ovary, shortly pubescent but for the glabrous apical 1/4. Fruit calyx as in C. melanoxylon but base more densely tomentose, longer lobes c. 1.5 cm broad, persistently shortly sparsely tomentose; 3 shorter lobes to 1.2 cm long, linear, shortly sparsely tomentose on both surfaces. Nut as in other species.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 30.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

A main canopy tree of dry acid soils, especially on coastal hills, it is locally common on giant podsols, on raised beaches, rare on sandstone cuestas, near present and Pleistocene coastlines.
More
Locally common on giant podsols, on raised beaches, rare on sandstone cuestas, near present and Pleistocene coastlines.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 10-12

Usage

Uses gum material 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°) 22 - 34
Size -
Vigor -
Productivity -

Distribution

Cotylelobium burckii world distribution map, present in Brunei Darussalam, Malaysia, and Somalia

Conservation status

Cotylelobium burckii threat status: Endangered

Identifiers

LSID urn:lsid:ipni.org:names:320610-1
WFO ID wfo-0000624075
COL ID YZ9Z
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Cotylelobium burckii Sunaptea burckii Cotylelobium flavum Vatica burckii Cotylelobium asperum