Hopea sulcata Symington

Species

Angiosperms > Malvales > Dipterocarpaceae > Hopea

Characteristics

Medium-sized fissure-barked small-buttressed tree, at first with stilt roots. Twigs, petioles and panicles silvery lepidote, domatia and petioles outside cream pubescent, parts otherwise glabrous. Twig c. 1 mm ø apically, slender, dark brown, ± prominently ribbed; stipule scars obscure. Leaf buds minute, ovate, stipules minute, linear, fugaceous. Leaves 4-10 by 1.7-4 cm, ovate; lanceolate, falcate, relatively small; base cuneate, shortly decurrent, subequal; acumen to 2 cm long, slender, caudate; nervation dryobalanoid, main nerves c. 10 pairs with many shorter unequal secondaries, arched, ± distinctly elevated beneath, ± depressed or obscure above, the main nerves with ± prominent axillary tomentose domatia; midrib elevated on both surfaces; petiole 5-11 mm long, slender. Panicle to 6 cm long, terminal or axillary, singly branched; branchlets to 16 mm long, bearing to 6 secund pale yellow flowers. Flower bud to 2 by 1 mm, ovoid. Sepals ovate, acute, the outer 2 narrower, longer than inner 3. Stamens 15, filaments broadly compressed at base, tapering, appendage aristate, c. 3 x length of subglobose anthers. Ovary ovoid, tapering into the equally long filiform style. Fruit pedicel c. 2 mm long, slender; base of fruit frequently impressed. 2 longer calyx lobes to 5.5 by 1.2 cm, spatulate, narrowly obtuse, c. 5 mm broad above the c. 1 mm broad subauriculate centrally saccate thickened base; 3 shorter lobes to 20 by 7 mm, similarly subauriculate, completely enclosing the nut. Nut to 10 by 7 mm, ovoid, acute.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
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

Locally abundant on ridges; at elevations from 100-400 metres.
More
Locally abundant on ridges, at 100-400 m.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 10-12

Usage

Uses 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 sulcata world distribution map, present in India and Malaysia

Conservation status

Hopea sulcata threat status: Near Threatened

Identifiers

LSID urn:lsid:ipni.org:names:321011-1
WFO ID wfo-0000724672
COL ID 6MCH9
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Hopea sulcata