Hopea acuminata Merr.

Species

Angiosperms > Malvales > Dipterocarpaceae > Hopea

Characteristics

Medium-sized tree with flaky bark. Young parts fugaceous puberulent, panicle persistently so or glabrous, domatia and parts of petals exposed in bud persistently so. Twig c. 1 mm ø apically, slender, much branched, terete, rugulose, dark brown. Buds minute; stipules fugaceous, not seen. Leaves 4.5-12 by 2-4.5 cm, elliptic-falcate to ovate-lanceolate, thinly coriaceous; base unequal, cuneate; acumen to 1 cm long, slender, tapering; nerves 9-11 pairs, slender but prominent beneath, +-applanate above, arched, at 45°-65°, with (young trees) or without small axillary pubescent domatia; tertiary nerves densely scalariform, very slender, barely elevated beneath; petiole 6-8 mm long. Panicle to 3.5 cm long, slender, terminal or to 2-axillary, singly branched; branchlets bearing to 4 cream flowers; bracteoles fugaceous. Flower buds to 3 by 2 mm, ellipsoid. 2 outer sepals lanceolate-acuminate; 3 inner sepals suborbicular, mucronate. Stamens 10, equal; filaments compressed, tapering, rather broad; appendages aristate, times as long as the oblong anthers. Ovary and stylopodium broadly cylindrical, truncate, slightly tapering, densely puberulent; style shorter than ovary but prominent. Fruit pedicel c. 2 mm long, slender. 2 longer calyx lobes to 5.5 by 1 cm, spatulate, obtuse, c. 2 mm broad above the to 4 by 4 mm elliptic saccate thickened base; 3 shorter lobes to 3 by 2 mm, elliptic, similarly saccate. Nut to 6 by 6 mm, broadly ovoid, with minute slender apical style remnant.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 28.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Common in evergreen and semi-evergreen rain forests; usually at elevations from 300-800 metres, but sometimes descending to 100 metres.
More
Widespread and common in semi-evergreen and evergreen forests, especially at 300-800 m but down to 100 m.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses 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°) -
Size -
Vigor -
Productivity -

Distribution

Hopea acuminata world distribution map, present in Brunei Darussalam and Philippines

Conservation status

Hopea acuminata threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:320835-1
WFO ID wfo-0000724475
COL ID 3MJC8
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Hopea maquilingensis Hopea acuminata