瀾滄木棉
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中文名:瀾滄木棉 學 名:Bombax cambodiense 界:植物界 門:被子植物門 綱:雙子葉植物綱 亞 綱:原始花被亞綱 目:錦葵目 科:木棉科 屬:木棉屬 種:瀾滄木棉 |
瀾滄木棉(lán cāng mù mián)，學名：Bombax cambodiense Pierre，異名：Bombax kerrii Gossampinus cambodiensis Bombax anceps var. cambodiense Bombax insigne var. cambodiense ，是木棉科、木棉屬落葉大喬木，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, 分布於雲南南部。 [1]
目錄
形態特徵
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.
產地生境
Usually growing as isolated trees along riverbanks, rare; ca. 1400 m. S Yunnan [Cambodia, Myanmar, Thailand].
通常沿着河岸作為孤植的喬木，稀有；約1400米。雲南南部 [柬埔寨，緬甸，泰國 ].
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已經被處理為B. anceps 的變種，它產於柬埔寨，老撾，馬來西亞，不同處為較小、無毛的小葉，6.5-16 * 2.5-6.5 厘米，和具紅色花瓣，而非白色。