大叶木兰Lirianthe henryi

中文名(Chinese Name):大叶木兰
学名(Scientific Name):Lirianthe henryi (Dunn) N. H. Xia et C. Y. Wu
英文名(English Common Name):
别名(Chinese Common Name):思茅玉兰、长喙厚朴
异名(Synonym):Magnolia henryi Dunn  Manglietia wangii Hu et Chun  Talauma kerrii Craib
科属(Family & Genus):木兰科(Magnoliaceae)长喙木兰属
形态特征(Description):落叶乔木,高达25米,树皮淡灰色;芽、嫩枝被红褐色而皱曲的长柔毛,小枝粗壮,初绿色后转褐色,腋芽圆柱形,灰绿色,无毛。叶坚纸质,7-9片集生于枝端,倒卵形或宽倒卵形,长34-50厘米,宽21-23厘米,先端宽圆,具短急尖,或有时2浅裂,基部宽楔形,圆钝或心形,上面绿色,有光泽,下面苍白色,被红褐色而弯曲的长柔毛;侧脉每边28-30条;叶柄粗壮,长4-7厘米,初被毛,托叶痕明显凸起,约为叶柄长的1/3-2/3。花后叶开放,白色,芳香,直径8-9厘米,花被片9-12,外轮3片背面绿而染粉红色,腹面粉红色,长圆状椭圆形,长8-13厘米,宽约5.6厘米,向外反卷;内两轮通常8片,纯白色,直立,倒卵状匙形,长约12-14厘米,基部具爪;雄蕊群紫红色,花药长约1厘米,花丝长约5毫米;药隔伸出成三角尖;雌蕊群圆柱形。聚合果圆柱形,直立,长11-20厘米,直径约4厘米,近基部宽圆向上渐狭;蓇葖具弯曲,长6-8毫米的喙;种子扁,长约7毫米,宽约5毫米。花期5-7月,果期9-10月。
分布(Distribution):产云南、西藏。生于海拔2100-3000米的山地阔叶林中。缅甸也有。
用途(Use):本种主要化学成分为异厚朴酚、厚朴酚、厚朴碱和挥发油,这与厚朴的主要成分相同,故作为著名中药厚朴的正品。其木材性质、花色、树形与厚朴相近似,为产区的造林树种和庭园观赏绿化树种。
引自中国植物志英文版:FOC Vol. 7 Page 48, 62, 63
Lirianthe henryi (Dunn) N. H. Xia & C. Y. Wu, Fl. China. 7: 63. 2008.
大叶木兰 da ye mu lan| Magnoliaceae  | Lirianthe
Basionym: Magnolia henryi Dunn, J. Linn. Soc., Bot. 35: 484. 1903; Manglietia wangii Hu & Chun; Talauma kerrii Craib.
Trees, to 20 m tall. Young twigs with appressed trichomes but later glabrescent. Stipular scar nearly reaching apex of petiole. Petiole 4-11 cm, with appressed trichomes when young; leaf blade obovate-oblong, 20-70 × 7-22 cm, leathery, abaxially sparsely appressed pubescent, adaxially glabrous, midvein adaxially prominent, secondary veins 14-20 on each side of midvein, reticulate veins sparse and prominent on both surfaces when dry, base broadly cuneate, apex obtuse to acute. Peduncle pendulous, ca. 8 cm, with 2 bract scars, glabrous. Flower buds ovoid; spathaceous bracts glabrous. Tepals 9; tepals of outer whorl 3, green, ovate-elliptic, 6-6.5 × 3-3.5 cm, apex obtuse; tepals of middle and inner whorls milky white, obovate-spoon-shaped, 5.5-6 cm, thickly fleshy; tepals of inner whorl narrower and smaller. Stamens 1.2-1.5 cm; anthers 1-1.2 cm; connective exserted and forming a mucro. Gynoecium narrowly ellipsoid, 3.5-4 cm, glabrous; carpels 85-95, narrowly long ellipsoid, 1.5-2 cm × 2-3 mm, abaxially 4- or 5-ridged; styles 4-9 mm. Fruit ovoid-ellipsoid, 10-15 × 3-5 cm. Fl. May, fr. Aug-Sep.
Evergreen broad-leaved forests; 500-1500 m. S Yunnan [Myanmar, Thailand].
大叶木兰Lirianthe henryi



大叶木兰Lirianthe henryi(责任编辑:徐晔春)

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