Hopea aptera P.S.Ashton

Species

Angiosperms > Malvales > Dipterocarpaceae > Hopea

Characteristics

Small, smooth, barked stilt-rooted tree. Twigs, petioles and panicles +-persistently greyish sericeous, outside of calyx and leaf nervation below caducously so, parts of petals exposed in bud densely pubescent. Twig c. 2 mm ø apically, becoming terete, ± rugulose. Buds minute, ovoid; stipules fugaceous, not seen. Leaves 10.5-25 by 4-8 cm, oblong-lanceolate, coriaceous; margin subrevolute, base obtuse or shallowly cordate; acumen to 3 cm long, prominent, slender; nerves 15-21 pairs, slender but prominent beneath, ± obscurely depressed above, arched towards the margin, at 55°-70°, without secondaries; tertiary nerves scalariform, very slender but elevated beneath; midrib prominent beneath, elevated above; petiole 8-12 mm long. Panicle to 7 cm long, 1-axillary to ramiflorous, lax, slender; singly branched, branchlets to 1.5 cm long, bearing to 3 secund flowers. Flower buds to 5 by 3 mm, ellipsoid, rather long. Sepals subequal, suborbicular, pubescent, fimbriate, patent. Stamens 15, in 3 unequal verticils; filaments compressed and broad at base, tapering and filiform in the distal 1/2; anthers small, subglobose; appendage c. 3.5 times length of anthers, very long and slender. Ovary and stylopodium narrowly hour-glass shaped, with short but distinct columnar style. Fruit pedicel very short. Calyx lobes to 8 by 6 mm, subequal, ovate, acute, saccate, +-thinly incrassate. Nut to 10 by 6 mm, ovoid, crowned by a prominent medially swollen stylopodium.
Life form -
Growth form tree
Growth support -
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 -

Environment

Forming pure stands in the more open,secondary forest formations. Locally common in dense primary forest and the more open secondary formations, growing in clay soils, including limestone; at elevations below 300 metres.
More
Locally common, primary and secondary forest below 300 m, clay soil including limestone.
Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

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 aptera world distribution map, present in Iceland and Papua New Guinea

Identifiers

LSID urn:lsid:ipni.org:names:320843-1
WFO ID wfo-0000724483
COL ID 3MJCG
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Hopea aptera