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白鹤藤Argyreia acuta

时间:2013-09-05 12:43来源:未知 作者:徐晔春 点击:
中文名 ( Chinese Name ): 白鹤藤 学名 ( Scientific Name ): Argyreia acuta Lour. 英文名 ( English Common Name ): 别名 ( Chinese Common Name ): 白背藤、绸缎藤 异名 ( Synonym ): Argyreia festiva Wall. Lettsomia chalmersii Hance
中文名Chinese Name):白鹤藤
学名Scientific Name):Argyreia acuta Lour.
英文名English Common Name):
别名Chinese Common Name):白背藤、绸缎藤
异名Synonym):Argyreia festiva Wall.  Lettsomia chalmersii Hance  Lettsomia festiva (Wall.) Benth. et Hook. f. 
科属Family & Genus):旋花科(Convolvulaceae)银背藤属
形态特征Description):攀援灌木,小枝通常圆柱形,被银白色绢毛,老枝黄褐色,无毛。叶椭圆形或卵形,长5-11(13.5)厘米,宽3-8(-11)厘米,先端锐尖,或钝,基部圆形或微心形,叶面无毛,背面密被银色绢毛,全缘,侧脉多至8对,在叶面不显,在叶背面中、侧脉均突起,网脉不显;叶柄长1.5-6厘米,被银色绢毛。聚伞花序腋生或顶生,总花梗长达3.5-7(8)厘米,被银色绢毛,有棱角或侧扁,次级及三级总梗长5-8毫米,具棱,被银色绢毛,花梗长5毫米,被银色绢毛;苞片椭圆形或卵圆形,钝,外面被银色绢毛,长8-12毫米,宽4-8毫米;萼片卵形,钝,外萼片长9-10毫米,宽6-7毫米,内萼片长6-7毫米,宽4-5毫米,外面被银色绢毛;花冠漏斗状,长约28毫米,白色,外面被银色绢毛,冠檐深裂,裂片长圆形,长达15毫米,先端渐尖,花冠管长6-7毫米;雄蕊着生于基部6-7毫米处,花丝长15毫米,具乳突,向基部扩大,花药长圆形,长4毫米;子房无毛,近球形,2室,每室2胚珠,花柱长2厘米,柱头头状,2裂。果球形,直径8毫米,红色,为增大的萼片包围,萼片凸起,内面红色。种子4-2,卵状三角形,长5毫米,褐色,种脐基生,心形。
分布(Distribution):产广东、广西,生于疏林下或路边灌丛、河边。印度、越南、老挝均有。
用途(Use):
引自中国植物志英文版FOC Vol. 16 Page 320
Argyreia acuta Loureiro, Fl. Cochinch. 135. 1790.
白鹤藤 bai he teng | Convolvulaceae  | Argyreia
Argyreia festiva Wallich; Lettsomia chalmersii Hance; L. festiva (Wallich) Bentham & J. D. Hooker.
Shrubs scandent. Stems terete; axial parts silvery sericeous when young, later yellowish or glabrescent. Petiole 1.5-6 cm; leaf blade elliptic or ovate, 5-13.5 X 3-11 cm, abaxially silvery sericeous, adaxially glabrous, base rounded, slightly cordate, or truncate; lateral veins to 9 pairs. Cymes axillary or terminal; peduncle 3.5-8 cm, angular or compressed; bracts elliptic or obovate, 0.8-1.2 4-8 cm, silvery sericeous abaxially, apex obtuse, ?deciduous. Pedicel ca. 5 mm. Sepals ovate-oblong, unequal; outer ones 9-10 6-7 mm; inner ones 6-7 X 4-5 mm, silvery sericeous abaxially, apex obtuse, crinkled or recurved. Fruiting sepals red, navicular, apex recurved or corrugate. Corolla white, broadly funnelform, ca. 2.8 cm, silvery sericeous outside; limb deeply 5-lobed; lobes oblong, apex acuminate. Stamens short exserted; filaments ca. 1.5 cm; anthers oblong, ca. 4 mm. Pistil exserted; ovary glabrous, 2-loculed, 4-ovuled. Style ca. 2 cm; stigma capitate, 2-lobed. Berry enclosed by enlarged calyx, red, globose, ca. 8 mm in diam. Seeds 2-4, brown, ovoid-trigonous, ca. 5 mm. Fl. Aug-Oct, fr. Oct-Jan.
Open forests, thickets, streamsides; 0-200 m. Guangdong, Guangxi, Hainan [Laos, Vietnam]
The whole plant has several medicinal uses.




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