马钱Strychnos nux-vomica

中文名(Chinese Name):马钱
学名(Scientific Name):Strychnos nux-vomica L.
英文名(English Common Name):strychnine tree
别名(Chinese Common Name):马钱树、马前
异名(Synonym):Strychnos spireana Dop  Strychnos nux-vomica var. oligosperma Dop
科属(Family & Genus):马钱科(Loganiaceae)马钱属
形态特征(Description):乔木,高5-25米。枝条幼时被微毛,老枝被毛脱落。叶片纸质,近圆形、宽椭圆形至卵形,长5-18厘米,宽4-13厘米,顶端短渐尖或急尖,基部圆形,有时浅心形,上面无毛;基出脉3-5条,具网状横脉;叶柄长5-12毫米。圆锥状聚伞花序腋生,长3-6厘米;花序梗和花梗被微毛;苞片小,被短柔毛;花5数;花萼裂片卵形,外面密被短柔毛;花冠绿白色,后变白色,长13毫米,花冠管比花冠裂片长,外面无毛,内面仅花冠管内壁基部被长柔毛,花冠裂片卵状披针形,长约3毫米;雄蕊着生于花冠管喉部,花药椭圆形,长1.7毫米,伸出花冠管喉部之外,花丝极短;雌蕊长9.5-12毫米,子房卵形,无毛,花柱圆柱形,长达11毫米,无毛,柱头头状。浆果圆球状,直径2-4厘米,成熟时桔黄色,内有种子1-4颗;种子扁圆盘状,宽2-4厘米,表面灰黄色,密被银色绒毛。花期春夏两季,果期8月至翌年1月。
分布(Distribution):产印度、斯里兰卡、缅甸、泰国、越南、老挝、柬埔寨、马来西亚、印度尼西亚和菲律宾等。生深山老林中。
用途(Use):种子极毒,主要含有马钱子碱和番木鳖碱等多种生物碱,用于健胃药。中医学上以种子泡制后入药,性寒,味苦,有通络散结,消肿止痛之效。
引自植物志英文版:FOC Vol. 15 Page 325
Strychnos nux-vomica Linnaeus, Sp. Pl. 1: 189. 1753.
马钱子 ma qian zi| Loganiaceae  | Strychnos
Strychnos nux-vomica var. oligosperma Dop; S. spireana Dop.
Trees to 25 m tall. Branchlets slightly pubescent, glabrescent. Petiole 0.5--1.5 cm; leaf blade suborbicular, broadly elliptic, or ovate, 5--18 X 4--12.5 cm, papery, abaxially minutely hairy especially on veins, adaxially glabrous and shiny, base rounded to cordate, apex shortly acuminate to acute and often mucronulate, basal veins 3--5. Thyrses axillary, 3--6 cm; peduncle puberulent; bracteoles pubescent. Flowers 5-merous. Pedicel puberulent. Calyx lobes ovate, outside densely pubescent. Corolla greenish white to white, salverform, ca. 1.3 cm; tube longer than lobes, outside glabrous, inside sparsely villous at base or on lower half; lobes narrowly ovate, ca. 3 mm, margin thickened and puberulent. Stamens inserted at mouth or corolla tube; filaments very short; anthers elliptic, ca. 1.7 mm, apex exserted. Pistil 1--1.2 cm. Ovary ovoid, glabrous. Style to 1.1 cm, glabrous; stigma capitate. Berries orange when ripe, globose, 2--4 cm in diam., glabrous, 1--4-seeded. Seeds orbicular to elliptic, 2--4 cm wide, densely sericeous. Fl. spring to summer.
Cultivated in Fujian, Guangdong, Guangxi, Hainan, Taiwan, and S Yunnan [Native in India. Cultivated throughout tropical Asia]
Medicinal; tools.
马钱Strychnos nux-vomica

马钱Strychnos nux-vomica

马钱Strychnos nux-vomica

马钱Strychnos nux-vomica(责任编辑:徐晔春)

顶一下[1]

踩一下[0]