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白桂木Artocarpus hypargyreus

时间:2013-10-16 21:31来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):白桂木 学名( Scientific Name ): Artocarpus hypargyreus Hance 英文名( English Common Name ): 别名( Chinese Common Name ): 胭脂木 异名( Synonym ): 科属( Family Genus ): 桑科(Moraceae)波罗蜜属 形态特
中文名(Chinese Name):白桂木
学名(Scientific Name):Artocarpus hypargyreus Hance
英文名(English Common Name):
别名(Chinese Common Name):胭脂木
异名(Synonym):
科属(Family & Genus):桑科(Moraceae)波罗蜜属
形态特征(Description):大乔木,高10-25米,胸径40厘米;树皮深紫色,片状剥落;幼枝被白色紧贴柔 毛。叶互生,革质,椭圆形至倒卵形,长8-15厘米,宽4-7厘米,先端渐尖至短渐尖, 基部楔形,全缘,幼树之叶常为羽状浅裂,表面深绿色,仅中脉被微柔毛,背面绿色或 绿白色,被粉末状柔毛,侧脉每边6-7条,弯拱向上,在表面平,在背面明显突起,网 脉很明显,干时背面灰白色;叶柄长1.5-2厘米,被毛;托叶线形,早落。花序单生叶 腋。雄花序椭圆形至倒卵圆形,长1.5-2厘米,直径1-1.5厘米;总柄长2-4.5厘米, 被短柔毛;雄花花被4裂,裂片匙形,与盾形苞片紧贴,密被微柔毛,雄蕊1枚,花药 椭圆形。聚花果近球形,直径3-4厘米,浅黄色至橙黄色,表面被褐色柔毛,微具乳头 状凸起;果柄长3-5厘米,被短柔毛。花期春夏。
分布(Distribution):产广东及沿海岛屿、海南、福建、江西(崇义、会昌、大余)、湖南、云南东南部 (屏边、麻栗坡、广南)。生于低海拔160-1630米,常绿阔叶林中。
用途(Use):乳汁可以提取硬性胶,木材可作家具。
引自中国植物志英文版:FOC Vol. 5 Page 33      
Artocarpus hypargyreus Hance in Bentham, Fl. Hongk. 325. 1861.
白桂木 bai gui mu | Moraceae  | Artocarpus
Trees 10-25 m tall, d.b.h. 40 cm. Bark dark purple, exfoliating. Young branchlets 1.5-2 thick, grayish to whitish appressed puberulent. Stipules linear, caducous. Leaves distichous; petiole 1.5-2 cm, pubescent; leaf blade elliptic to obovate, 8-15 × 4-7 cm, pinnately lobed on young trees, leathery, abaxially green to whitish green and with farinaceous pubescence, adaxially dark green and puberulent on midvein when young, base cuneate, margin entire, apex acuminate to shortly acuminate; veins conspicuous and grayish white when dry, secondary veins 6-7 on each side of midvein, apically curved, abaxially prominent, and adaxially flat. Inflorescences axillary, solitary. Male inflorescences ellipsoid to obovoid, 1.5-2 × 1-1.5 cm; peduncle 2-4.5 cm, pubescent; bracts shield-shaped. Male flowers: calyx lobes 4, spatulate, densely pubescent, adnate to bracts; anther ellipsoid. Fruiting syncarp pale to golden yellow, ± globose, 3-4 cm in diam., brown pubescent, papillate; peduncle 3-5 cm, shortly pubescent. Fl. spring to summer.
* Broad-leaved evergreen forests; 100-1700 m. Fujian, Guangdong, Guangxi, Hainan, S Hunan, Jiangxi, SE Yunnan.
The milky latex is used for making stiff rubber and the wood for furniture.


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