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53. Blachia Baillon, Étude Euphorb. 385. 1858.
留萼木属 liu e mu shu
Authors: Bingtao Li & Michael G. Gilbert
Shrubs, monoecious. Leaves simple, alternate, shortly petiolate; leaf blade entire, rarely divided; venation pinnate. Inflorescences terminal or axillary, male flowers in dense or lax racemelike thyrses, female flowers in umbel-like or racemelike inflorescences, sometimes 1 to several inserted at base of male inflorescences; bracts absent; pedicels delicate. Male flowers: sepals 4 or 5, imbricate; petals 4 or 5, shorter than sepals; disk glands scalelike; stamens 10-30, inserted on elevated receptacle; filaments free. Female flowers: pedicels stouter in upper part; sepals 5, accrescent or slightly so; petals absent; disk annular or divided; ovary 3- or 4-locular; ovules 1 per locule; styles 3, free, bifid. Capsule slightly depressed globose, with 3 longitudinal grooves. Seeds not strophiolate; endosperm fleshy; cotyledon broad and flat.
About ten species: tropical regions of Asia; four species in China.
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| 1 |
Leaf apex rounded, rarely retuse, lateral veins 3-5, divaricate near margins; capsule ca. 8 mm in diam.. |
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3 B. siamensis |
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Leaf apex acute to long acuminate, lateral veins 4-12; capsule 12-15 mm in diam |
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(2) |
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| 2 (1) |
Leaf blade abaxially greenish when dry, margin entire or undulate, sometimes with 1 shallow lobe on one side, lateral veins sparsely pubescent. |
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4 B. jatrophifolia |
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Leaf blade red-brown when dry, margin entire, lateral veins glabrous |
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(3) |
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| 3 (2) |
Male peduncle 2-8 cm; stamens ca. 15; ovary and capsule glabrous. |
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1 B. pentzii |
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Male peduncle 1-3.5 cm; stamens ca. 24; ovary and capsule pubescent. |
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2 B. andamanica |
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Lower Taxa
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