Dryobalanops fusca Slooten

Species

Angiosperms > Malvales > Dipterocarpaceae > Dryobalanops

Characteristics

Leaf undersurface shortly densely evenly persistently golden tomentose; midrib beneath, petiole, leaf bud and stipule outside (subglabrous within) more darkly so. Twig 1-2 mm ø at the apex, slender, much branched. Bud to 4 by 2 mm, lanceolate, acute. Stipule to 3 by 1 mm, linear, fugaceous. Leaves 5-10 by 2-4 cm, broadly lanceolate, coriaceous, base obtuse or broadly cuneate; acumen to 1.5 cm long, slender, tapering, caudate; nerves obscured by tomentum; midrib depressed above, prominent beneath; petiole 5-10 mm long, short, drying pale rufous tomentose. Panicle to 5 cm long, terminal or axillary, terete, densely shortly evenly pale rufous tomentose; singly branched, branchlets to 2 cm long, bearing to 3 flowers. Flower bud to 12 by 3 mm, lanceolate, glabrous. Sepals equal, narrowly lorate-deltoid, obtuse, glabrous. Petals lanceolate, glabrous. Stamens c. 30, subequal, reaching to below style apex; filaments connate at base, tapering, c. ⅔ length of anthers; anthers narrowly oblong, tapering; appendage to connective erect, extending somewhat above anther apex. Ovary ovoid, glabrous; style 3-4 times length of ovary, filiform, glabrous. Fruit entirely glabrous. Pedicel to 6 mm long, prominent. Calyx lobes to 6 by 1.3 cm, spatulate, obtuse, c. 4 mm wide above the to 3 mm deep, to 7 mm ø, shallow thickened basal cup. Nut to 2 by 1.3 cm, ellipsoid-ovoid, apiculate.
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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 dominant on podsols, low ridges and especially raised beaches, in heath forest.
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Cultivation

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Conservation status

Dryobalanops fusca threat status: Critically Endangered

Identifiers

LSID urn:lsid:ipni.org:names:320810-1
WFO ID wfo-0000657516
COL ID 37V4M
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Dryobalanops fusca