Hopea depressinerva P.S.Ashton

Species

Angiosperms > Malvales > Dipterocarpaceae > Hopea

Characteristics

Medium-sized tree with slightly cracked bark. Young parts glabrescent. Twig 1-2 mm ø apically, terete, smooth; stipule scars short, obscure. Bud to 1 by 1 mm, minute. Stipule unknown. Leaves 5-13 by 2-5 cm, lanceolate to narrowly elliptic, coriaceous, base cuneate; acumen to 1.5 cm long, slender; nerves 6-8 pairs, slender but raised beneath, depressed above, at 40°-50°; tertiary nerves slender, densely scalariform; midrib prominently terete beneath, slender, somewhat depressed, above; petiole 11-13 mm long, terete. Panicle to 7 cm long, terete, terminal or axillary, densely persistently buff pubescent; singly branched, branchlets to 1.5 cm long, bearing to 5 secund flowers; bracteoles fugaceous, unknown. Flower bud to 3 by 2 mm, ellipsoid. Calyx densely buff sericeous, lobes ovate, acute, the outer 2 somewhat longer, relatively narrower, than the inner 3. Petals elliptic, obtuse, densely pubescent on parts exposed in bud, pink outside, pale orange within. Stamens 10, equal, forming a ring round the ovary; filaments broad, compressed at base, tapering and filiform below the subglobose anthers; appendages to connectives c. 2 times length of anthers, filiform, slender. Ovary and stylopodium glabrous, cylindrical, truncate, surmounted by a short style. Mature fruit unknown; calyx lobes unequal, the 2 longer aliform, considerably larger than the other 3.
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Growth form tree
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Foliage retention evergreen
Sexuality hermaphrodite
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Environment

Rare, granodiorite hill slopes below 500 m.
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Usage

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Cultivation

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Distribution

Hopea depressinerva world distribution map, present in Malaysia

Conservation status

Hopea depressinerva threat status: Critically Endangered

Identifiers

LSID urn:lsid:ipni.org:names:320875-1
WFO ID wfo-0000724518
COL ID 3MJDF
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Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Hopea depressinerva