中文名（Chinese Name）：厚壳树
学名（Scientific Name）：Ehretia acuminata (DC.) R. Br.
英文名（English Common Name）：
别名（Chinese Common Name）：
异名（Synonym）：Ehretia thyrsiflora (Sieb. et Zucc.) Nakai；Ehretia serrata var. obovata Lindl.；Ehretia taiwaniana Nakai；Ehretia acuminata var. grandifolia Pamp.；Ehretia acuminata var. obovata (Lindl.) I. M. Johnst.；Ehretia argyi H. Lév.；Ehretia kantonensis Masam.；Ehretia onava A.DC.；Ehretia acuminata var. laxiflora Benth.；Ehretia acuminata var. pilosula (F.Muell.) I.M.Johnst.；Ehretia acuminata var. polyantha (DC.) I.M.Johnst.；Ehretia acuminata var. pyrifolia (D.Don) I.M.Johnst.；Ehretia acuminata var. serrata (Roxb.) I.M.Johnst.；Ehretia ovalifolia Hassk.；Ehretia pilosula F.Muell.；Ehretia polyantha A.DC.；Ehretia pyrifolia D.Don；Ehretia serrata var. pyrifolia (D. Don) DC.；Ehretia serrata Roxb.；Ehretia thyrsiflora var. latifolia Nakai
科属（Family & Genus）：紫草科（Boraginaceae）厚壳树属
形态特征（Description）：落叶乔木，高达15米，具条裂的黑灰色树皮；枝淡褐色，平滑，小枝褐色，无毛，有明显的皮孔；腋芽椭圆形，扁平，通常单一。叶椭圆形、倒卵形或长圆状倒卵形，长5-13厘米，宽4-6厘米，先端尖，基部宽楔形，稀圆形，边缘有整齐的锯齿，齿端向上而内弯，无毛或被稀疏柔毛；叶柄长1.5-2.5厘米，无毛。聚伞花序圆锥状，长8-15厘米，宽5-8厘米，被短毛或近无毛；花多数，密集，小形，芳香；花萼长1.5-2毫米，裂片卵形，具缘毛；花冠钟状，白色，长3-4毫米，裂片长圆形，开展，长2-2.5毫米，较筒部长；雄蕊伸出花冠外，花药卵形，长约1毫米，花丝长2-3毫米，着生花冠筒基部以上0.5-1毫米处；花柱长1.5-2.5毫米，分枝长约0.5毫米。核果黄色或桔黄色，直径3-4毫米；核具皱折，成熟时分裂为2个具2粒种子的分核。
分布（Distribution）：产华南、西南、华东及台湾、山东、河南等地，生于海拔100-1700米丘陵、平原疏林、山坡灌丛及山谷密林中。日本及越南也有。
用途（Use）：可作行道树，供观赏；木材供建筑及家具用；树皮作染料；嫩芽可供食用；叶、心材、树枝入药。
引自中国植物志英文版FOC Vol. 16 Page 334
Ehretia acuminata R. Brown, Prodr. 147. 1810.
厚壳树 hou ke shu| Boraginaceae  | Ehretia
Cordia thyrsiflora Siebold & Zuccarini; Ehretia acuminata var. grandifolia Pampanini; E. acuminata var. obovata (Lindley) I. M. Johnston; E. argyi H. Léveillé; E. kantonensis Masamune; E. serrata Roxburgh var. obovata Lindley; E. taiwaniana Nakai; E. thyrsiflora (Siebold & Zuccarini) Nakai.
Trees to 15 m tall; bark black-gray, laciniate; branches light brown, smooth; branchlets brown, glabrous, with distinct lenticels; axillary buds solitary, compressed. Petiole 1.5-2.5 cm, glabrous; leaf blade elliptic to obovate or oblong-obovate, 5-13 × 4-6 cm, glabrous or sparsely puberulent, base broadly cuneate, margin regularly serrate with teeth curved upward, apex acute, apiculate. Cymes paniculate, 8-15 × 5-8 cm, short pubescent or subglabrous. Flowers crowded, fragrant. Calyx 1.5-2 mm; lobes ovate, ciliate. Corolla white, campanulate, 3-4 mm; lobes spreading, oblong, longer than tube. Stamens exserted; filaments 2-3 mm, inserted on upper part of base, 0.5-1 mm; anthers ovate, ca. 1 mm. Style 1.4-2.5 mm, branches ca. 0.5 mm. Drupes yellow or orange, 3-4 mm in diam.; endocarp wrinkled, divided at maturity into 2 2-seeded pyrenes. 2n = 30, 32, 36.
Hills, open forests, thickets on slopes; 100-1700 m. Guangdong, Guangxi, Guizhou, Henan, Hunan, Jiangsu, Jiangxi, Shandong, Sichuan, Taiwan, Yunnan, Zhejiang [Bhutan, India, Indonesia, Japan, Vietnam; Australia]
Ehretia acuminata is a widespread species with much variation. Chinese and Japanese plants named as E. thyrsiflora are not specifically different from the Australian type, and the varieties recognized by Johnston (J. Arnold Arbor. 32: 21. 1951) show no geographical correlations. Attempts to subdivide the complex have not been successful, and it seems most appropriate to apply the specific epithet in a very wide sense.
Used for roadside plantings and the timber for building and furniture. The leaves and branchlets are used in Chinese medicine.
（责任编辑：徐晔春）