蕊木Kopsia lancibracteolata Merr.

别名：假乌榄树;

科名：夹竹桃科 Apocynaceae

属名：蕊木属 Kopsia

《中国植物志》第63卷041页
  1. 蕊木（广东）假乌榄树（广东儋县）图版14
  Kopsia lancibracteolata Merr. in Philip. Journ. Sci. 23; 262. 1923, et in Lingnan Sci. Journ 5: 150. 1927; Tsiang in Sunyatsenia 2: 111. 1934;中国高等植物图鉴, 3: 421, 图4796. 1974; 海南植物志, 3: 231. 1974.
  乔木，高达15米；枝条无毛，淡绿色。叶革质，卵状长圆形，长8-22厘米，宽4-8.5厘米，两面无毛，略具光泽，顶端急尖，基部阔楔形；侧脉每边10-18条，明显；叶柄长5-7毫米。聚伞花序顶生，长约7厘米；苞片长7毫米，披针形，渐尖，两面被灰色微毛；花萼裂片长圆状披针形，长4-6毫米，宽2毫米，边缘有缘毛，两面被微毛；花冠白色，花冠筒长2.5厘米，内面喉部被长柔毛，裂片长圆形，长1.5-2厘米，宽4-5毫米；花药长圆状披针形，基部圆；花盘匙形，比心皮长，长1.5毫米，宽0.7毫米；子房由2个离生心皮组成，长1毫米，被短柔毛，花柱细长，柱头棍棒状，每心皮有胚珠2颗。核果未熟时绿色，成熟后变黑色，近椭圆形，长2.5厘米，直径1.5厘米，顶端圆形；种子1-2颗，长1.5厘米，直径5毫米。花期4-6月，果期7-12月。
  产于广东（信宜、湛江、海南）、广西（钦州）等省区。常生于溪边、疏林中向阳处，也有生于山地密林中和山谷潮湿地方。模式标本采自广东海南。

《Flora of China》 Vol. 16 (1995)
Kopsia arborea  Blume
蕊木   rui mu
Kopsia lancibracteolata Merrill; K. officinalis Tsiang & P. T. Li.
Trees to 15 m tall. Branches greenish, terete, slightly compressed, puberulent when young. Petiole 5-15 cm; leaf blade elliptic, narrowly elliptic, or narrowly ovate, 8-24 X 3.5-8.5 cm, glabrous, apex acute or short acuminate; lateral veins 10-20 pairs. Cymes corymbose, many flowered; peduncle to 14 cm, puberulent or glabrous; bracteoles narrowly oblong, puberulent or glabrous. Pedicel 3-4 mm. Sepals narrowly oblong, 4-6 mm, puberulent or glabrous. Corolla white, tube ca. 2.5 cm; lobes narrowly oblong, 1.5-2 cm. Disc scales narrowly oblong, longer than ovary, fleshy. Ovary ovoid, puberulent. Drupes black or blue-black, ellipsoid, 2.5-3.5 X 1.5-2 cm. Fl. Apr-Sep, fr. Jul-Dec. 2n = 72.
Montane forests, often along moist ravines; 400-1000 m. S Guangdong, SE Guangxi, Hainan, S Yunnan [Indonesia, Malaysia, Philippines, Thailand, Vietnam; N Australia].
A decoction of bark is used as an enema. The leaves and fruit are used to treat sore throat and tonsillitis.