坡垒Hopea hainanensis Merr. et Chun

别名：青皮;海梅;海南坡垒;石梓公;

科名：龙脑香科 Dipterocarpaceae

属名：坡垒属 Hopea

《中国植物志》第50(2)卷120页
  3.坡垒（海南）图版31：1-3
  Hopea hainanensis Merr. et Chun in Sunyatsenia 5: 134. 1940; Tard. in Humb. Suppl. Fl. Gen. Ind-Chine 1: 344. 1938; 海南植物志1, 517,图258. 1964; 中国高等植物图鉴2, 887, 图3504. 1972; T. Smitinand in Thai For. Bull. 12: 48. 1980.
  乔木，具白色芳香树脂，高约20米；树皮灰白色或褐色，具白色皮孔。叶近革质，长圆形至长圆状卵形，长8-14厘米，宽5-8厘米，先端微钝或渐尖，基部圆形，侧脉9-12对，下面明显突起；叶柄粗壮，长约2厘米，均无毛或具粉状鳞粃。圆锥花序腋生或顶生，长3-10厘米，密被短的星状毛或灰色绒毛。花偏生于花序分枝的-侧，每朵花具早落的小苞片1枚；花萼裂片5枚，覆瓦状排列，长约2.5毫米，顶端圆形，外面2枚全部被毛；花瓣5枚，旋转排列，长圆形或长圆状椭圆形，长约6毫米，宽约3毫米，先端具不规则的齿缺，基部略收缩偏斜；雄蕊15枚，两轮排列，外轮的花丝呈阔卵形，内轮的花丝呈线形，花药卵圆形，药隔附属体丝状，长约1毫米；子房长圆形，基部具长丝毛，花柱锥状，柱头明显，具花柱基。果实卵圆形，具尖头，被腊质；增大的2枚花萼裂片为长圆形或倒披针形，长5-7厘米，宽2.5厘米，具纵脉9-11条，被疏星状毛。花期6-7月，果期11-12月。
  产海南。生于海拔X00米左右的密林中。越南北部有分布。模式标本采自海南。
  坡垒是我国珍贵用材树种之一，为有名的高强度用材，经久耐用，最适宜做渔轮的外龙骨，内龙筋，轴套及尾轴筒，首尾柱；亦作码头桩材、桥梁和其它建筑用材等。

《Flora of China》 Vol. 13 (2007)
Hopea hainanensis  Merrill & Chun
坡垒   po lei
Trees ca. 20 m tall, with aromatic white resin. Bark gray or brown, flaky, white lenticellate. Petiole robust, ca. 2 cm, glabrous or farinose-scurfy; leaf blade oblong to oblong-ovate, 4-8 × 5-8 cm, thinly leathery, both surfaces glabrous or farinose-scurfy, lateral veins 9-12 pairs conspicuously raised abaxially, base rounded, margin entire, apex slightly obtuse or acuminate. Flowers arranged in lax panicle of unilateral racemes. Sepals ovate, ca. 2.5 mm, apex rounded, outer 2 pubescent on entire surface. Petals oblong or oblong-elliptic, ca. 6 mm. Stamens 15; anthers ovoid; connective appendages filiform, ca. 1 mm. Ovary and stylopodium ovoid, pubescent; style short, glabrous; stigma conspicuous. Fruit ovoid, waxy, apiculate; winglike calyx segments oblong or oblanceolate, 5-7 × ca. 2.5 cm, longitudinally 9-11-veined, sparsely stellate pubescent. Fl. Jun-Jul, fr. Nov-Dec.
Dense forests; ca. 700 m. Hainan [N Vietnam].
This is an endangered species of scattered occurrence. The durable wood is used for making boats and building bridges and houses.