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14. Aporosa Blume, Bijdr. 514. 1825.
银柴属 yin chai shu
Authors: Bingtao Li & Michael G. Gilbert
Scepa Lindley.
Trees or shrubs, dioecious, rarely monoecious; indumentum of simple hairs. Leaves alternate; stipules caducous; petiole apex usually glandular; leaf blade simple, margin entire or sparsely denticulate, venation pinnate. Inflorescences axillary, solitary or clustered spikes or racemes, many flowered, male inflorescences longer than female, bracteate; pedicels short. Male flowers apetalous, without disk; sepals 3-6, nearly equal, membranous, imbricate; stamens 2 or 3, rarely 5 or 8; filaments free, as long as or longer than sepals; anthers small, longitudinally dehiscent; pistillode very small or absent. Female flowers: sepals 3-6, shorter than ovary; ovary 2(-4)-locular; ovules 2 per locule; styles 2(-4), apex shallowly bifid, rarely papillate or fringed. Fruit a drupelike capsule, irregularly dehiscent when mature and dry, 1- or 2-seeded. Seeds not strophiolate; endosperm fleshy; cotyledon flattened and broad. x = 13.
About 80 species: India and Sri Lanka to SW China, Indonesia, and Malaysia; four species in China.
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| 1 |
Ovary and fruits pubescent or tomentose |
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(2) |
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Ovary and fruits glabrous |
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(3) |
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| 2 (1) |
Leaves mostly broadly ovate or elliptic, base truncate or cordate, sometimes obtuse, abaxially uniformly hairy; bracts semiorbicular; male sepals obovate; capsule tomentose. |
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1 A. villosa |
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Leaves mostly narrowly ovate or elliptic, base usually ± cuneate, abaxially glabrous or pilose only along veins; bracts ovate-triangular; male sepals oblong-ovate; capsule thinly pubescent. |
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2 A. dioica |
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| 3 (1) |
Branches pubescent when young; leaf blade papery to leathery, margin entire; female sepals 4. |
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3 A. planchoniana |
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Branches glabrous when young; leaf blade membranous to thinly papery, margin sparsely glandular-crenulate; female sepals usually 3. |
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4 A. yunnanensis |
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Lower Taxa
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