Shorea acuminatissima Symington

Yellow meranti (en)

Species

Angiosperms > Malvales > Dipterocarpaceae > Shorea

Characteristics

Very tall buttressed tree with dark brown square-section fissured bark. Twig, panicle, petiole, bud, stipule and nervation beneath +-persistently scabrid rust pubescent. Twig c. 1.5 mm ø apically, slender, much branched, terete, becoming smooth. Bud to 1.2 by 1 mm, globose to ellipsoid, small. Stipule c. 6 by 3.5 mm, oblong-falcate, base obtuse or subcordate; caducous, more persistent in young trees. Leaves 7-10 by 3-4 cm, ovate, sometimes cream to brown lepidote beneath; base obtuse; acumen c. 1 mm long; short, acute; margin revolute; nerves 9-12 pairs, prominent beneath, at c. 40°-50°; tertiary nerves dense, scalariform, distinct; midrib prominent beneath, depressed above; petiole 1-1.5 cm long, slender. Panicle to 8 cm long, terminal or axillary, terete, singly branched; branchlets to 2 cm long, bearing to 6 secund flowers; bracteoles to 2 by 2 mm, broadly oblong, obtuse, puberulent. Flower bud to 5 by 3 mm, ellipsoid, subacute. Calyx densely pubescent outside, glabrous within; lobes broadly ovate, subequal, obtuse; inner 2 lobes thinner towards margin, narrower at base, than outer 3. Petals shortly pubescent on parts exposed in bud, imbricate at base after opening forming a cup, spreading and contorted distally. Stamens 15, of 2 lengths the longest 5 exceeding the ovary; filaments broad, compressed, tapering, somewhat gibbous; anthers broadly oblong; appendage to connective longer than anthers, slender, puberulent towards apex. Ovary and stylopodium narrowly ovoid, with a band of short hairs towards the apex; style as long as ovary and stylopodium, slender, glabrous. Fruit subsessile, with prominent obconical receptacle; calyx puberulent or glabrescent; 3 longer lobes to 6 by 1.3 cm, spatulate, obtuse, to 3 mm broad above the to 4 by 4 mm somewhat tuberculate thickened base; 2 shorter lobes to 4.5 by 0.8 cm, otherwise similar. Nut to 2 by 0.7 cm, narrowly ovoid, densely pale rufous pubescent.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 50.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

An emergent tree in mixed dipterocarp forest, often on hills and ridges near the coast, growing on friable, sandy-clay soils at elevations from sea level to 1,600 metres.
More
Local, Mixed Dipterocarp forest on sandy clay soils on hills below 500 m, usually near the coast.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

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

Cultivation

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

Images

Shorea acuminatissima unspecified picture

Distribution

Shorea acuminatissima world distribution map, present in Brunei Darussalam

Conservation status

Shorea acuminatissima threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:321186-1
WFO ID wfo-0000500395
COL ID 4X4TK
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Shorea acuminatissima