Shorea scabrida Symington

Species

Angiosperms > Malvales > Dipterocarpaceae > Shorea

Characteristics

Medium-sized tree. Young twig, panicle, leaf bud, outside of stipule, midrib on both surfaces and nervation beneath +-persistently densely tawny-brown scabrid pubescent. Twig c. 2 mm ø apically, much branched, terete, becoming smooth, glabrous; stipule scars short, horizontal, obscure. Bud 2.5-5 by 1.5-3 mm, ovoid, compressed, obtuse. Stipule to 6 by 3 mm, oblong, obtuse, fugaceous. Leaves 5-9 by 3-5 cm, small, obovate or elliptic, coriaceous; base broadly cuneate, rarely obtuse; apex retuse, obtuse or with to 5 mm long acumen; nerves 8-11 pairs, slightly curved, at c. 25°-40°, rarely with domatia; tertiary nerves slender, scalariform, diagonal to nerves; midrib narrow and depressed above, terete and prominent beneath; petiole 9-11 mm long, short, rugose. Panicle to 8 cm long, terminal or axillary, short, terete or slightly compressed; singly, rarely doubly, branched, branchlets short, rather irregular, bearing to 7 ± distichous flowers; bracteoles to 3.5 by 2.5 mm, ovate, subacute, shortly buff pubescent outside, glabrescent within. Flower bud to 8 by 3.5 mm, lanceolate, obtuse. Calyx densely pale buff pubescent outside, glabrous within; 3 outer lobes deltoid to ovate, subacute; 2 inner lobes smaller, broadly ovate, subacuminate. Petals cream, pink at base, lanceolate, acute, densely pubescent on parts exposed in bud. Stamens 15, in 3 distinct verticils; filaments tapering gradually; anther subglobose; appendages to connective slightly longer than anther, the longest reaching to the base of the style, becoming reflexed. Ovary and stylopodium narrowly conical, densely pubescent except at the base; style almost half length of ovary and stylopodium, glabrous. Fruit calyx glabrescent; 3 longer lobes to 7 by 1.5 cm, spatulate, c. 3 mm wide above the to 7 by 5 mm ovate saccate thickened base; 2 shorter lobes to 3 by 0.3 cm, linear, similar at base. Nut to 10 by 8 mm, ovoid, shortly densely buff pubescent, shortly 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

Local in fresh water swamp forest on shallow peat overlying sand, and on skeletal sandy soil on ridges and plateaux, in heath forest and Mixed Dipterocarp forest.
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Hardiness (USDA) 10-12

Usage

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Edible -
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Cultivation

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Distribution

Shorea scabrida world distribution map, present in Brunei Darussalam and Indonesia

Conservation status

Shorea scabrida threat status: Near Threatened

Identifiers

LSID urn:lsid:ipni.org:names:321438-1
WFO ID wfo-0000499350
COL ID 4X534
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Shorea scabrida