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4. Shorea Roxburgh ex C. F. Gaertner, Suppl. Carp. 47. 1805.
娑罗双属 suo luo shuang shu
Pentacme A. Candolle.
Trees usually large, prominently buttressed. Bark usually fissured, flaky. Stipules caducous, large or small; leaf blade ± leathery, tertiary veins parallel, margin entire. Flowers in axillary or terminal lax cymose panicles; bracts persistent, caducous, or absent. Sepals with 3 outer larger than 2 inner. Petals white, yellow, or pink, usually pubescent. Stamens (12-)15 or 20-100; anthers ovoid, oblong, or panduriform; connective subulate-cuspidate or stout, club-shaped; valves equal or outer one slightly larger. Ovary ovoid, pubescent; style subulate; stigma entire or 3-toothed. Fruit usually 1-seeded, closely surrounded by thickened bases of accrescent calyx segments; sepals developed into lorate wings, outer 3 much larger than 2 inner.
About 200 species: Bhutan, Cambodia, China, NE India, Indonesia, Laos, Malaysia, Myanmar, Nepal, Philippines, Thailand, Vietnam; two species in China.
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Trees evergreen with laminated inner bark; anthers ellipsoid, glabrous, connective appendages filiform, glabrous; stamens (S. sect. Anthoshorea (Pierre) F. Heim). |
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1 S. assamica |
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Trees deciduous without laminated inner bark; anthers panduriform, setose toward apex, connective appendages short, stout, sparsely setose (S. sect. Shorea). |
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2 S. robusta |
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Lower Taxa
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