Shorea venulosa G.H.S.Wood ex Meijer

Species

Angiosperms > Malvales > Dipterocarpaceae > Shorea

Characteristics

Large buttressed tree with dark brown, fissured, flaky bark. Young parts at first densely dotted with minute adpressed hair tufts, fugaceous on all but stipule outside and leaf bud; stipule persistently shortly pubescent within. Twig c. 1 mm ø apically, slender, much branched, terete, rugulose or smooth, glabrous; stipule scars narrow, slightly paler at first, almost or completely amplexicaul, ± ascending. Bud to 7 by 2 mm, fulvous pale grey, lanceolate, compressed, acute. Stipule to 20 by 3.5 mm, hastate, acute, fugaceous. Leaves 6-10 by 3-5 cm (rarely much smaller in exposed places), ovate, coriaceous; base obtuse; acumen to 6 mm long; margin sometimes slightly revolute; nerves 15-18 pairs, slender, hardly or not elevated beneath, dense, at 35°-40°, curved towards the margin, sometimes with prominent axillary pore-like domatia; tertiary nerves very slender, densely scalariform, diagonal to nerves; midrib raised beneath, obscure and depressed above; petiole 1.7-3 cm long, slender, geniculate. Panicle to 11 cm long, terminal or axillary, slender, lax, +-terete, shortly densely persistently cream to pale grey pubescent; singly or doubly branched, the branchlets short, bearing to 10 secund flowers; bracteoles to 3.5 by 2 mm, ovate, obtuse, sparsely pubescent outside, glabrous within. Bud to 5 by 2.5 mm, narrowly ovoid, subacute. Calyx densely pale grey pubescent outside, glabrous within; 3 outer lobes narrowly deltoid, subacute, slightly revolute; 2 inner lobes smaller, acute, not revolute. Petals pink, oblong-lanceolate, pubescent on parts exposed in bud. Stamens 15, the inner 5 slightly longer than the others; filaments broad at base, rather abruptly tapering and filiform distally; anther oblong; appendage to connective over twice as long as anther, reaching almost to style apex. Ovary narrowly ovoid, shortly pubescent, longer pubescent towards apex; stylopodium indistinct; style filiform, somewhat shorter than ovary, glabrous but for shortly pubescent base. Fruit calyx sparsely puberulent, more densely so at base; 3 longer lobes to 6 by 1.3 cm, chartaceous, spatulate, narrowly obtuse, c. 3.5 mm broad above the c. 7 by 5 mm deltoid saccate thickened base; shorter lobes to 3 by 0.3 cm, subequal, linear, similar at base. Nut c. 20 by 8 mm, narrowly ovoid, shortly pubescent towards the apex, otherwise glabrous; style remnant acute.
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Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
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Photosynthetic pathway c3

Environment

On podsols in heath forest, on terraces, plateaux and ridges to 1600 m; locally common; on ultrabasics in E. Sabah.
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Hardiness (USDA) 10-12

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Cultivation

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Distribution

Shorea venulosa world distribution map, present in Brunei Darussalam, Malaysia, and Saudi Arabia

Conservation status

Shorea venulosa threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:321479-1
WFO ID wfo-0000499295
COL ID 4X54B
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Shorea venulosa