钩枝藤Ancistrocladus tectorius (Lour.) Merr.
钩枝藤Ancistrocladus tectorius (Lour.) Merr.
1.钩枝藤（海南植物志）本蓬藤、本叶藤（海南）
Ancistrocladus tectorius (Lour.) Merr. in Lingn. Sci. Journ. 6: 329. 1930; Van Steen. Fl. Malesiana ser. 1, 4 (1): 9 , fig. 1, 2. 1948;海南植物志1: 515, 图283. 1964; 中国高等植物图鉴2: 946, 图3621. 1972. ——Bembix tectoria Lour. Fl. Cochinch. 1: 282. 1790. ——Ancistrocladus pinangianus (Wall. Cat. 1054 nomen) Planch. in Ann. Sci. Nat. Bot. ser. 3, 13: 318. 1849; A. DC. Prodr. 16(2): 603. 1868; Dyer in Hook. f. Fl. Brit. Ind. 1: 300. 1874. ——A. extensus Wall. (Cat. No. 1052. 828) nom. nud. Plantch. in Ann. Sci. Nat. Bot. ser. 3, 13: 318. 1849；A. DC. Prodr. 16 (2): 602. 1868: Gagnep. in Lecomte, Fl. Gen. Indo-Chine 1: 395. 1910；Merr. in Lingn. Scl. Journ. 5: 133. 1927. ——Ancistrocladus hainanensis Hayata Icon. Pl. Formos 3: 46. 1913.
攀援灌木，长达4-10米，幼时常呈直立灌木状；枝具环形内弯的钩，无毛。叶常聚集于茎顶；叶片革质，长圆形、倒卵长圆形至倒披针形，长7-10厘米，宽3-7厘米，先端圆或圆钝，稀急尖，基部渐窄而下延，全缘，两面无毛，均被白色圆形的小鳞秕和小点，中脉在上面下陷，在下面明显凸起，侧脉和网脉纤细，在下面稍突起；通常无叶柄，在小枝上留下马鞍状的痕迹；托叶小，早落。花几朵或多数，顶生或侧生，二歧状分枝而排成圆锥状的穗状花序；小苞片卵形，先端急尖，边缘薄，流苏状，内面基部增厚呈褐色；花小，直径7-8毫米；无梗；萼片5，基部合生呈短筒，裂片长椭圆形，略不等大，长4-5毫米，顶端圆，边有小缘毛，其余无毛，内面近基部有白色圆形的小鳞秕，外面在中部以下常有1-3浅杯状下凹的腺体；花瓣基部合生，质厚，斜椭圆形，先端急尖，常内卷；雄蕊10，5长5短，花丝基部较宽；子房大半下位，3心皮，1室；花柱短，直立，柱头3。坚果红色，倒圆锥形，和萼筒合生，直径6-9毫米；萼裂片增大成翅状，翅倒卵状匙形，不等大，最大的长达4.5厘米，宽1.6厘米，顶端圆，有较明显的脉纹，最小的长1.5-2厘米，宽5-7毫米，亦有脉纹。种子近球形。花期4-6月，果期6月开始。
仅产海南各地。生于山坡、山谷密林中或山地森林中，海拔500-700米。分布中南半岛至印度。
《Flora of China》 Vol. 13 (2007)
Ancistrocladus tectorius (Loureiro) Merrill
钩枝藤 gou zhi teng
Bembix tectoria Loureiro, Fl. Cochinch. 1: 282. 1790; Ancistrocladus carallioides Craib; A. cochinchinensis Gagnepain; A. extensus Wallich ex Planchon; A. hainanensis Hayata; A. harmandii Gagnepain; A. pinangianus Wallich ex Planchon.
Juvenile plants unknown but probably erect. Adult stems climbing to 20 m high; lateral branches with recurved to spiraling hooks. Stipules tiny, mostly caducous with saddlelike scars on branches; leaves at branchlet apices elliptic to obovate, 7-38(-50.2) × 2.1-9.3(-11.7) cm, leathery, both surfaces frequently with small, white, orbicular pits, base attenuate and decurrent, apex rounded or rounded-obtuse, rarely acute; midvein prominent abaxially, impressed adaxially, lateral and reticulate tertiary veins tenuous, slightly prominent on both surfaces. Inflorescence lax to congested, paniculate, lateral among leaves at apices of branches; bracts triangular to ovate, 0.2-2.4 × 0.2-1.5 mm, abaxially eglandular or with 1 or 2 circular glands, margin fimbriate-erose, apex acute. Pedicel 0.3-3 mm. Sepals 5, at base shortly decurrent on ovary, suborbicular to elliptic-oblong, slightly unequal, 3.2-5.5 mm, outside eglandular or with 1-4 shallowly cupular glands below middle, inside with white orbicular small pits near base, apex rounded. Petals 5, convolute, connate basally, suborbicular to obliquely elliptic, 5-6 mm, apex acute, usually involute. Stamens in 1 whorl, 5 longer than others; filaments wider basally, dimorphic: shorter ones 0.3-1.2 mm, longer ones 1.1-2 mm. Ovary fully inferior; styles 3, erect, ca. 1 mm; stigmas ca. 0.2 mm. Nut red, obconic, sides 5-ridged by decurrent margins of accrescent sepals, 5-9 mm, 5-10 mm in diam.; persistent sepals spreading, narrowly oblong to spatulate, unequal, larger 3 sepals 3-5.6 × 1-1.7(-2.5) cm, smaller 2 sepals 2-3(-4) × 0.5-1.2(-1.9) cm, veined, apex rounded. Seeds subglobose. Fl. Apr-Jun, fr. Jun [fl. and fr. year-round outside of China].
Evergreen tropical forests in valleys and on slopes; 500-700 m [sea level to 1600 m outside of China]. Hainan [Cambodia, India (Andaman and Nicobar Islands), Indonesia, Laos, Malaysia, Myanmar, Singapore, Thailand, Vietnam].
别名：车蓬藤;本叶藤;车叶藤;本蓬藤;
科名：钩枝藤科 Ancistrocladaceae
属名：钩枝藤属 Ancistrocladus
1.钩枝藤（海南植物志）本蓬藤、本叶藤（海南）
Ancistrocladus tectorius (Lour.) Merr. in Lingn. Sci. Journ. 6: 329. 1930; Van Steen. Fl. Malesiana ser. 1, 4 (1): 9 , fig. 1, 2. 1948;海南植物志1: 515, 图283. 1964; 中国高等植物图鉴2: 946, 图3621. 1972. ——Bembix tectoria Lour. Fl. Cochinch. 1: 282. 1790. ——Ancistrocladus pinangianus (Wall. Cat. 1054 nomen) Planch. in Ann. Sci. Nat. Bot. ser. 3, 13: 318. 1849; A. DC. Prodr. 16(2): 603. 1868; Dyer in Hook. f. Fl. Brit. Ind. 1: 300. 1874. ——A. extensus Wall. (Cat. No. 1052. 828) nom. nud. Plantch. in Ann. Sci. Nat. Bot. ser. 3, 13: 318. 1849；A. DC. Prodr. 16 (2): 602. 1868: Gagnep. in Lecomte, Fl. Gen. Indo-Chine 1: 395. 1910；Merr. in Lingn. Scl. Journ. 5: 133. 1927. ——Ancistrocladus hainanensis Hayata Icon. Pl. Formos 3: 46. 1913.
攀援灌木，长达4-10米，幼时常呈直立灌木状；枝具环形内弯的钩，无毛。叶常聚集于茎顶；叶片革质，长圆形、倒卵长圆形至倒披针形，长7-10厘米，宽3-7厘米，先端圆或圆钝，稀急尖，基部渐窄而下延，全缘，两面无毛，均被白色圆形的小鳞秕和小点，中脉在上面下陷，在下面明显凸起，侧脉和网脉纤细，在下面稍突起；通常无叶柄，在小枝上留下马鞍状的痕迹；托叶小，早落。花几朵或多数，顶生或侧生，二歧状分枝而排成圆锥状的穗状花序；小苞片卵形，先端急尖，边缘薄，流苏状，内面基部增厚呈褐色；花小，直径7-8毫米；无梗；萼片5，基部合生呈短筒，裂片长椭圆形，略不等大，长4-5毫米，顶端圆，边有小缘毛，其余无毛，内面近基部有白色圆形的小鳞秕，外面在中部以下常有1-3浅杯状下凹的腺体；花瓣基部合生，质厚，斜椭圆形，先端急尖，常内卷；雄蕊10，5长5短，花丝基部较宽；子房大半下位，3心皮，1室；花柱短，直立，柱头3。坚果红色，倒圆锥形，和萼筒合生，直径6-9毫米；萼裂片增大成翅状，翅倒卵状匙形，不等大，最大的长达4.5厘米，宽1.6厘米，顶端圆，有较明显的脉纹，最小的长1.5-2厘米，宽5-7毫米，亦有脉纹。种子近球形。花期4-6月，果期6月开始。
仅产海南各地。生于山坡、山谷密林中或山地森林中，海拔500-700米。分布中南半岛至印度。
《Flora of China》 Vol. 13 (2007)
Ancistrocladus tectorius (Loureiro) Merrill
钩枝藤 gou zhi teng
Bembix tectoria Loureiro, Fl. Cochinch. 1: 282. 1790; Ancistrocladus carallioides Craib; A. cochinchinensis Gagnepain; A. extensus Wallich ex Planchon; A. hainanensis Hayata; A. harmandii Gagnepain; A. pinangianus Wallich ex Planchon.
Juvenile plants unknown but probably erect. Adult stems climbing to 20 m high; lateral branches with recurved to spiraling hooks. Stipules tiny, mostly caducous with saddlelike scars on branches; leaves at branchlet apices elliptic to obovate, 7-38(-50.2) × 2.1-9.3(-11.7) cm, leathery, both surfaces frequently with small, white, orbicular pits, base attenuate and decurrent, apex rounded or rounded-obtuse, rarely acute; midvein prominent abaxially, impressed adaxially, lateral and reticulate tertiary veins tenuous, slightly prominent on both surfaces. Inflorescence lax to congested, paniculate, lateral among leaves at apices of branches; bracts triangular to ovate, 0.2-2.4 × 0.2-1.5 mm, abaxially eglandular or with 1 or 2 circular glands, margin fimbriate-erose, apex acute. Pedicel 0.3-3 mm. Sepals 5, at base shortly decurrent on ovary, suborbicular to elliptic-oblong, slightly unequal, 3.2-5.5 mm, outside eglandular or with 1-4 shallowly cupular glands below middle, inside with white orbicular small pits near base, apex rounded. Petals 5, convolute, connate basally, suborbicular to obliquely elliptic, 5-6 mm, apex acute, usually involute. Stamens in 1 whorl, 5 longer than others; filaments wider basally, dimorphic: shorter ones 0.3-1.2 mm, longer ones 1.1-2 mm. Ovary fully inferior; styles 3, erect, ca. 1 mm; stigmas ca. 0.2 mm. Nut red, obconic, sides 5-ridged by decurrent margins of accrescent sepals, 5-9 mm, 5-10 mm in diam.; persistent sepals spreading, narrowly oblong to spatulate, unequal, larger 3 sepals 3-5.6 × 1-1.7(-2.5) cm, smaller 2 sepals 2-3(-4) × 0.5-1.2(-1.9) cm, veined, apex rounded. Seeds subglobose. Fl. Apr-Jun, fr. Jun [fl. and fr. year-round outside of China].
Evergreen tropical forests in valleys and on slopes; 500-700 m [sea level to 1600 m outside of China]. Hainan [Cambodia, India (Andaman and Nicobar Islands), Indonesia, Laos, Malaysia, Myanmar, Singapore, Thailand, Vietnam].