Hopea sphaerocarpa (F.Heim) P.S.Ashton

Species

Angiosperms > Malvales > Dipterocarpaceae > Hopea

Characteristics

Small tree. Twigs, petioles, buds and midrib on both surfaces ± densely persistently evenly tawny pubescent, leaf nervation sometimes sparsely so. Twig c. 1 mm ø apically, terete, straight, lax, smooth. Bud c. 1 by 1 mm, small. Stipule c. 4 by 2 mm, oblong, obtuse, caducous. Leaves 3.5-10 by 1.4-4.5 cm, ovate to broadly lanceolate, chartaceous, undulate; base obtuse to subcordate; acumen to 1 cm long; nervation subdryobalanoid, main nerves 9-11 pairs, slender, elevated beneath, with obscure short secondaries; tertiary nerves densely scalariform, slender; midrib slender, elevated beneath, applanate above; petiole 3-6 mm long, short. Panicle to 10 cm long, axillary, sometimes terminal, lax, slender, glabrous; singly branched, branchlets zig-zag, bearing to 6 ± distichous flowers; bracteoles c. 2 mm long, linear, glabrous, subpersistent. Flower bud to 2 by 2 mm, subglobose. Sepals broadly ovate, subacute, sub-equal, densely shortly pubescent on parts exposed in bud. Petals elliptic-oblong, subacute, puberulent on parts exposed in bud, dark crimson. Stamens 15, in 3 unequal rows; filaments broad and compressed at base, tapering abruptly and filiform beneath the subglobose anthers; appendage to connective 3-5 times as long as anther, slender. Ovary and stylopodium cylindrical, truncate, somewhat constricted medially, glabrous; style short, conical. Fruit glabrous. Pedicel to 4 mm long, very long. Calyx lobes to 8 by 7 mm, subequal, ovate, acute, saccate, thickened. Nut to 10 by 8 mm, ovoid; stylopodium to 2 mm tall, prominent, truncate.
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Growth form tree
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Foliage retention evergreen
Sexuality hermaphrodite
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Mature height (meter) 0.17 - 1.3
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Environment

Local; Mixed Dipterocarp forest on leached clay-rich soils on low hills.
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Hardiness (USDA) 10-12

Usage

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Edible -
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Cultivation

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Distribution

Hopea sphaerocarpa world distribution map, present in Brunei Darussalam, Indonesia, and Malaysia

Conservation status

Hopea sphaerocarpa threat status: Near Threatened

Identifiers

LSID urn:lsid:ipni.org:names:321004-1
WFO ID wfo-0000724663
COL ID 3MJHK
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Hopea sphaerocarpa Balanocarpus sphaerocarpus