Hopea bracteata Burck

Species

Angiosperms > Malvales > Dipterocarpaceae > Hopea

Characteristics

Small, occasionally medium sized, tree. Twig, leaf bud, stipule and petiole shortly persistently grey-brown puberulent. Twig to 0.7 mm0 apically, slender, terete, much branched, becoming smooth, glabrous. Bud to 2.5 mm long, lanceolate. Stipule to 3 mm long, linear, fugaceous. Leaves 2.5-6 by 0.7-2 cm, thin, narrowly ovate, base cuneate; acumen to 1.5 cm long; nerves c. 11 pairs, slender, hardly more distinct than secondaries, at 55°-65°, strongly curved; tertiary nerves slender, reticulate; midrib slender but raised beneath, narrow, depressed above; petiole 2-4 mm long, slender. Panicle to 9 cm long, terminal or axillary, very slender, lax, terete, glabrous; remotely irregularly singly or doubly branched, branchlets to 3 cm long, zigzag, bearing to 5 flowers; bracteoles to 1 mm long, deltoid, glabrous. Bud to 3 mm long, subglobose, distinctly pedicellate. Calyx lobes fimbriate, otherwise glabrous; outer lobes suborbicular, thin; inner lobes suborbicular, mucronate, thin. Petals oblong, acute, densely shortly tomentose on parts exposed in bud, dark red with pale tips. Stamens 15; filaments broad at base, tapering; anthers subglobose; appendage to connective c. 2 times length of anther, slender, joining abruptly with the distinctly broader connective and filament. Ovary and stylopodium glabrous, cylindrical, truncate, ovary only slightly the broader; style short, abrupt, glabrous. Fruit entirely glabrous. Calyx lobes to 5 by 5 mm, subequal, broadly ovate, obtuse, incrassate at base but for a chartaceous margin. Nut to 9 by 6 mm, ovoid; apex minutely truncate.
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Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
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Photosynthetic pathway c3

Environment

Locally abundant on spurs and ridges below 650 m.
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Hardiness (USDA) 9-12

Usage

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Cultivation

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Distribution

Hopea bracteata world distribution map, present in Brunei Darussalam, India, Malaysia, and Thailand

Identifiers

LSID urn:lsid:ipni.org:names:320855-1
WFO ID wfo-0000724496
COL ID 6MD73
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Balanocarpus curtisii Balanocarpus bracteatus Hopea bracteata Hopea minima