澜沧木棉查看源代码讨论查看历史
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中文名:澜沧木棉 学 名:Bombax cambodiense 界:植物界 门:被子植物门 纲:双子叶植物纲 亚 纲:原始花被亚纲 目:锦葵目 科:木棉科 属:木棉属 种:澜沧木棉 |
澜沧木棉(lán cāng mù mián)，学名：Bombax cambodiense Pierre，异名：Bombax kerrii Gossampinus cambodiensis Bombax anceps var. cambodiense Bombax insigne var. cambodiense ，是木棉科、木棉属落叶大乔木，Trees 20-25 m tall; bark gray, with many conic spines; branches and branchlets tomentose. Petiole 20-32 cm, distinctively 4-grooved; leaflets 7, petiolules 1-1.2 cm, abaxially hairy; blades 15-28 × 6-12 cm, abaxially tomentose or woolly, lateral veins ca. 25 per side of midrib, abaxially raised, base obtuse, apex acute. Flowers large, solitary or clustered, subapical. Pedicel rough, 25-35 mm; bracteoles 3 or 4. Calyx tube closed, 分布于云南南部。 [1]
形态特征
Bombax anceps Pierre var. cambodiense (Pierre) A. Robyns; B. insigne Wallich var. cambodiense (Pierre) Prain; B. kerrii Prain; Gossampinus cambodiensis (Pierre) Backhuizen.Trees 20-25 m tall; bark gray, with many conic spines; branches and branchlets tomentose.
Petiole 20-32 cm, distinctively 4-grooved; leaflets 7, petiolules 1-1.2 cm, abaxially hairy; blades 15-28 × 6-12 cm, abaxially tomentose or woolly, lateral veins ca. 25 per side of midrib, abaxially raised, base obtuse, apex acute. Flowers large, solitary or clustered, subapical.
Pedicel rough, 25-35 mm; bracteoles 3 or 4. Calyx tube closed, ca. 5 × 3.5 cm wide, abaxially pubescent, adaxially hispid and tomentose, apex 3-toothed. Petals white, obovate, ca. 4 cm, both surfaces hairy. Stamens ca. 400, fascicled; filament tube ca. 15 mm, filaments filiform, glabrous. Ovary conic, pubescent; ovules ca. 80 per locule; style hairy, very short, apex 5-lobed. Fl. and fr. Nov-Dec.
Trees 20-25 m tall; bark gray, with many conic spines; branches and branchlets tomentose. Petiole 20-32 cm, distinctively 4-grooved; leaflets 7, petiolules 1-1.2 cm, abaxially hairy; blades 15-28 × 6-12 cm, abaxially tomentose or woolly, lateral veins ca. 25 per side of midrib, abaxially raised, base obtuse, apex acute.
Flowers large, solitary or clustered, subapical. Pedicel rough, 25-35 mm; bracteoles 3 or 4. Calyx tube closed, ca. 5 × 3.5 cm wide, abaxially pubescent, adaxially hispid and tomentose, apex 3-toothed. Petals white, obovate, ca. 4 cm, both surfaces hairy.
Stamens ca. 400, fascicled; filament tube ca. 15 mm, filaments filiform, glabrous. Ovary conic, pubescent; ovules ca. 80 per locule; style hairy, very short, apex 5-lobed. Fl. and fr. Nov-Dec.
产地生境
Usually growing as isolated trees along riverbanks, rare; ca. 1400 m. S Yunnan [Cambodia, Myanmar, Thailand].
通常沿着河岸作为孤植的乔木，稀有；约1400米。云南南部 [柬埔寨，缅甸，泰国 ].
Bombax cambodiense has been treated as a variety of B. anceps, which occurs in Cambodia, Laos, Malaysia, and Vietnam and differs by the smaller, glabrous leaflets, 6.5-16 × 2.5-6.5 cm, and by the red, not white, petals.
Bombax cambodiense已经被处理为B. anceps 的变种，它产于柬埔寨，老挝，马来西亚，不同处为较小、无毛的小叶，6.5-16 * 2.5-6.5 厘米，和具红色花瓣，而非白色。