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古山龙Arcangelisia gusanlung

时间:2013-10-16 20:49来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):古山龙 学名( Scientific Name ): Arcangelisia gusanlung Lo 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): Arcangelisia loureiroi (Pierre) Diels 科属( Family Genus ): 防
中文名(Chinese Name):古山龙
学名(Scientific Name):Arcangelisia gusanlung Lo
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Arcangelisia loureiroi (Pierre) Diels
科属(Family & Genus):防己科(Menispermaceae)古山龙属
形态特征(Description):木质大藤本,长可达10余米,茎和老枝灰色或暗灰色,有不规则的纵皱纹,木材鲜黄色;小枝圆柱状,有整齐的直线纹,无毛。叶片革质至近厚革质,阔卵形至阔卵状近圆形,长8-13厘米,宽6-9.5厘米,先端常骤尖,基部近截平或微圆,很少近心形,干时上面灰褐色,下面茶褐色,两面无毛,稍有光泽;掌状脉5条,网状小脉在下面较清楚;叶柄着生在叶片的近基部,稍纤细,有直线纹,两端均肿胀,比叶片短。雄花序通常生于老枝叶痕之上,为圆锥花序,长5-8厘米,分枝较短,长1-2厘米或稍过之,近无毛;雄花:花被3轮,每轮3片,外轮近卵形,长0.6-0.8毫米,边缘啮蚀状,中轮长圆状椭圆形,长2.2-2.3毫米,内轮舟状,长约2.2毫米;聚药雄蕊有9个花药。雌花序和雌花均未见。果序生于老茎上,粗壮,果梗粗壮,长0.7-1.5厘米,径0.5-0.7厘米,果近球形,稍扁,宽2.5-3厘米,成熟时黄色,最后变黑色,中果皮肉质,果核近骨质,扁球形,被锈色长毛,无任何凸起。花期夏初。
分布(Distribution):产于海南各地,生于林中。
用途(Use):这种植物的根和茎都含有多种生物碱,如小檗碱( berberine )和巴马汀(palmatine) 等,是海南民间常用的一种退热剂,也有很好的消炎作用。
引自中国植物志英文版:FOC Vol. 7 Page 5
Arcangelisia gusanlung H. S. Lo, Acta Phytotax. Sin. 18: 100. 1980.
古山龙 gu shan long| Menispermaceae  | Arcangelisia
Large woody vines up to 10 m. Stems and old branches gray or dark gray, irregularly and longitudinally rugose; branchlets terete, neatly and longitudinally striate, glabrous. Petioles shorter than leaf blade; leaf blade broadly ovate to broadly ovate-orbicular, 8-13 × 6-9.5 cm, leathery to thickly leathery, fuliginous adaxially and brown abaxially when dry, glabrous on both surfaces, base subtruncate or slightly rounded, rarely subcordate, apex often cuspidate, palmately 5-veined, fine reticulation more conspicuous abaxially. Male inflorescences usually arising from leaf scar on old stems, paniculate, 5-8 cm with short branches 1-2 cm or slightly longer, subglabrous. Male flowers: sepals 9 in 3 whorls, outer whorls subovate, 0.6-0.8 mm, margin erose, middle whorl oblong-elliptic, 2.2-2.3 mm, inner whorl nautiform, ca. 2.2 mm; synandrium with 9 anthers. Female flowers not seen. Infructescences borne on old stems, stout, carpophores stout, 0.7-1.5 × 0.5-0.7 cm. Drupes yellow when mature, later black, subglobose, slightly flat, 2.5-3 cm, ferruginous pilose; exocarp smooth; endocarp subbony, oblate. Fl. summer.
● Forests. Hainan.
Material of this species was originally identified as Arcangelisia flava (Linnaeus) Merrill (including A. loureiroi (Pierre) Diels) (e.g., Forman, Fl. Thailand 5(3): 339. 1991). Arcangelisia flava has larger leaves, (10-)12-25 × (5.5-)8-19 cm, inflorescences 10-50 cm, and carpophores to 4 cm.
This species is used medicinally. An unpublished IUCN list recorded it as vulnerable: VU(A1c,2c;B2c).


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