Hopea gregaria Slooten

Species

Angiosperms > Malvales > Dipterocarpaceae > Hopea

Characteristics

Medium-sized or large flaky-barked tree with hard wood. Young parts buff puberulent, becoming sparse but +-persistent on calyx, persistent on panicle and parts of petals exposed in bud. Twig 1-2 mm ø apically, much branched, terete, becoming smooth, blackish. Leaf bud minute, ovoid; stipules fugaceous, not observed. Leaf 6-13 by 2.5-6.5 cm, lanceolate-falcate to ovate, thinly coriaceous, with dull minutely stellate undersurface; base cuneate, unequal; acumen to 1.5 cm long, slender, tapering; nerves 7-10 pairs, slender but distinctly elevated beneath, ± applanate above, rarely with glabrous porous canaliculate axillary domatia; tertiary nerves scalariform, +-evident on both surfaces; midrib slender but prominent beneath, evident and ± elevated above; petiole 6-10 mm long, slender. Panicle to 6 mm long, slender, terminal or 1-axillary, singly branched, branchlets to 12 mm long, bearing to 4 flowers. Flower buds to 3 by 2 mm, ellipsoid. Sepals subequal, ovate, acute. Stamens 15, shorter than style, in 3 subequal verticils; filaments broad, compressed, tapering and becoming filiform below the broadly oblong anthers; appendages c. 1½ times length of anthers. Ovary and stylopodium broadly pyriform, punctate distally, somewhat abruptly tapering to the short columnar style. Mature fruit unknown. Pedicels c. 3 mm long; sepals unequal but the 2 longer relatively short, broad, becoming reflexed; nut ovoid, shortly apiculate.
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Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
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Photosynthetic pathway c3

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Usage

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Cultivation

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Distribution

Hopea gregaria world distribution map, present in Indonesia

Conservation status

Hopea gregaria threat status: Endangered

Identifiers

LSID urn:lsid:ipni.org:names:320904-1
WFO ID wfo-0000724549
COL ID 6MCFV
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Hopea gregaria