Hopea micrantha Hook.F.

Species

Angiosperms > Malvales > Dipterocarpaceae > Hopea

Characteristics

Small to medium-sized smooth barked tree with small narrow buttresses and abundant stilt roots. Young twig, leaf bud, panicle, petiole, and stipule pale brown fugaceous pubescent. Twig to 1.5 mm ø apically, slender, glabrous apart from the apices, terete, smooth. Bud to 2 by 1.5 mm, ovoid, obtuse. Stipule to 2 mm long, narrowly deltoid, acute, fugaceous. Leaves 6-8 by 2.5-3 cm, oblong-lanceolate, coriaceous; base obtuse or broadly cuneate, equal; acumen to 1.5 cm long, caudate; nerves 10-12 pairs, indistinct, curved, with short secondaries; midrib straight, slightly raised above, prominently so beneath; petiole 7-10 mm long, short. Panicle to 1 cm long, terminal or axillary, terete; singly branched, branchlets short, bearing up to 5 ± secund flowers; bracteoles small, narrowly deltoid, glabrescent, fugaceous. Bud small, ovoid. Calyx puberulent outside, glabrous within; 2 outer lobes narrowly ovate, acuminate, 3 inner lobes thin, suborbicular, mucronate; petals linear, densely pubescent on parts exposed in bud. Stamens 15, of 3 lengths; filaments slender, tapering; anthers broadly oblong; appendage to connective c. 1.5 times length of anther. Ovary ovoid, glabrous, without distinct stylopodium; style c. 1.5 times length of ovary, filiform, glabrous. Fruit calyx glabrous; 2 longer lobes to 5 by 1.2 cm, spatulate, obtuse, to 2 mm wide above the to 4 by 3 mm saccate deltoid thickened base; 3 shorter lobes to 5 by 5 mm, broadly ovate to suborbicular, subacute to obtuse, thin, saccate, shorter than the nut. Nut to 10 by 6 mm, ovoid; style remnant to 1.5 mm long, filiform.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 40.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
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Nitrogen fixer -
Photosynthetic pathway c3

Environment

An upper canopy tree of the forests, mostly found on kerangas and white-sand terraces, or in heath forest, sometimes associated with Agathis, rarely on sandy clay soil, or on hillsides, at low elevations
More
Mostly on kerangas and white-sand terraces, or in heath forest, sometimes associated with Agathis, rarely on sandy clay soil, or on hillsides, at low altitude.
Light -
Soil humidity -
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Hardiness (USDA) -

Usage

Uses material medicinal 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 -
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Optimum temperature (C°) -
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Vigor -
Productivity -

Conservation status

Hopea micrantha threat status: Critically Endangered

Identifiers

LSID urn:lsid:ipni.org:names:320945-1
WFO ID wfo-0000724594
COL ID -
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Hancea micrantha Hopea micrantha