古山龙Arcangelisia gusanlung
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 An unpublished IUCN list recorded it as vulnerable: VU(A1c,2c;B2c).
（责任编辑：徐晔春）
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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