中文名（Chinese Name）：斜脉粗叶木
学名（Scientific Name）：Lasianthus verticillatus (Lour.) Merr.
英文名（English Common Name）：
别名（Chinese Common Name）：鸡屎树
异名（Synonym）：Lasianthus obliquinervis Merr.  Lasianthus obliquinervis var. taitoensis (Simizu) Liu et Chao  Lasianthus verticillatus var. taitoensis (Simizu) H. Zhu  Lasianthus taitoensis Simizu  Lasianthus tamirensis Pierre ex Pitard  Lasianthus nigrocarpus Masam.  Dasus verticillatus Lour.  Lasianthus truncatus Bedd.  Lasianthus andamanicus Hook. f.  Nonatelia truncata (Bedd.) Kuntze  Nonatelia andamanica (Hook.f.) Kuntze  Lasianthus andamanicus var. ciliatus Deb & M.G.Gangop.  Lasianthus obliquinervis var. nigrocarpus (Masam.) Hatus.  Lasianthus verticillatus var. hirsutus H.Zhu  Mephitidia nigrocarpa (Masam.) Masam.
科属（Family & Genus）：茜草科Rubiaceae粗叶木属Lasianthus
形态特征（Description）：灌木，高1-3米，很少呈小乔木状，高达5米；枝粗壮，近圆柱状，干时变黑色或深灰色，在放大镜下可见散生的贴伏微柔毛。叶厚纸质或近革质，长圆形或狭长圆形，间有椭圆形或卵状椭圆形，很少倒卵形，长通常10-20厘米，宽2.5-5.5厘米或稍过之，顶端骤尖或渐尖，基部近短尖或钝，常二侧稍不对称，边缘常微带皱波状，干时灰色或灰褐色，上面光亮无毛，下面中脉、侧脉和横行小脉上均被贴伏的柔毛；中脉在上面压入，下面凸起，侧脉每边约5-7条，有时可多至9条，横行小脉近平行，纤细；叶柄较粗壮，长通常不超过1厘米，很少达1.5厘米，密被贴伏的柔毛；托叶近三角形，长3.5-5毫米，被贴伏的柔毛。花无梗，数朵簇生叶腋，无苞片；萼近钟状，长4-5毫米，被柔毛，几近截平；花冠长约1厘米，多少被柔毛，其中冠管长约6毫米，里面中部以上被白色长柔毛，裂片5，长圆形或长圆状披针形，比管稍短，里面被长柔毛；雄蕊5，生冠管的中部，花丝短，花药线形，长约1.4-1.5毫米，内藏；花柱与冠管近等长。核果卵圆形，长(6-)7-9毫米，被柔毛，顶冠以短筒状、几截平的宿存萼檐，含5 (-6)个分核。
分布（Distribution）：产台湾、广东中部以南、海南、广西、云南。常生密林中。分布于菲律宾和日本。
用途（Use）：
引自中国植物志英文版：FOC Vol. 19 Page 187, 190, 196, 197, 198  
Lasianthus verticillatus (Loureiro) Merrill, Trans. Amer. Philos. Soc., n.s. 24: 372. 1935.
斜脉粗叶木 xie mai cu ye mu| Rubiaceae  | Lasianthus
Dasus verticillatus Loureiro, Fl. Cochinch. 1: 142. 1790; Lasianthus andamanicus J. D. Hooker; L. taitoensis Simizu; L. tamirensis Pierre ex Pitard.
Shrubs, 1.5-3 m tall; branches and branchlets appressed pubescent or strigillose to glabrescent. Petiole 7-10 mm, densely pubescent or strigillose to strigose; leaf blade leathery, oblong to elliptic-oblong, 8.5-18 × 3.5-7 cm, glabrous adaxially, thinly pubescent or strigillose abaxially, base acute to broadly obtuse, margins usually undulate, often thinly revolute, apex acute or acuminate; lateral veins 7-9 pairs; nervules parallel; nerves and nervules elevated conspicuously abaxially; stipules generally persistent, triangular to narrowly triangular, 3-5 mm, densely puberulent to strigillose. Inflorescences subcapitate to congested-cymose, sessile; bracts absent or reduced. Flowers sessile to subsessile. Calyx subglabrous or puberulent; hypanthium portion campanulate to subglobose, 2.5-3 mm; limb 2-2.5 mm, truncate or minutely dentate. Corolla 10-12 mm, hirtellous to villous outside, villous inside; lobes 5, ovate. Fruit blue, ellipsoid, up to 10 mm in diam., strigillose to glabrescent, smooth; pyrenes 4 or 5. Fl. Apr-May, fr. Oct-Nov.
Forests, shaded and wet places; 100-1000 m. Guangdong, Guangxi, Hainan, Taiwan, Yunnan [Cambodia, India (Andaman and Nicobar Islands), Indonesia, Japan (Ryukyu Islands), Laos, Malaysia, Myanmar, Philippines, Thailand, Vietnam].
The relatively large flowers with the large globose to ellipsoid hypanthium (i.e., ovary) portion are distinctive; Lasianthus chinensis is similar in these characters but can be distinguished by its deeply lobed calyx limb and angled to ridged fruit.
Specimens from mainland SE China, Taiwan, and Ryukyu Islands that have been treated as "Lasianthus obliquinervis Merrill" are clearly conspecific with L. verticillatus. In Merrill’s description (Philipp. J. Sci. 1(Suppl. 1): 136. 1906), L. obliquinervis is described as having oblong-ovate stipules ca. 5 mm and fruit with 6 triquetrous pyrenes, which does not match L. verticillatus. Lasianthus obliquinervis represents a different species with distribution in the Philippines and Papua New Guinea. The so-called "L. obliquinervis" from China, Taiwan, and the Ryukyus in Chinese and Japanese literature is a misidentification of the species L. verticillatus.
 




（责任编辑：徐晔春）