黄叶树Xanthophyllum hainanense Hu
黄叶树Xanthophyllum hainanense Hu
4.黄叶树（中国高等植物图鉴）
Xanthophyllum hainanense Hu in Journ. Arn. Arb. 6:142. 1925; Gagnep. in Lecomte, Fl. Gen. Indo-Chine, Suppl. 1: 218. 1939; 海南植物志1: 368, 图189. 1964;中国高等植物图鉴2: 575, 图2880. 1972;广东植物志2:61, 图41. 1991.——X. racemo-sum auct. non Chodat: G. W. Groff, Ding et E. H. Groff in Lingnan Agr. Rev. 2: 26. 1924; Merr. in Journ. Arn. Arb. 6: 134. 1925.
乔木，高5-20米；树皮暗灰色，具细纵裂；小枝圆柱形，纤细，无毛。叶片革质，卵状椭圆形至长圆状披针形，长4-12厘米，宽1.5-5厘米，先端长渐尖，基部楔形至钝，全缘，有时波状，两面均无毛，干时黄绿色，主脉及侧脉在两面突起，侧脉每边9-11条，弧曲，于边缘网结，细脉网状，上面明显，背面突起；叶柄长6-10毫米，具横纹，上面具槽。总状花序或小型圆锥花序腋生或顶生，长3-9厘米，总花梗及花梗密被短柔毛；花小，芳香，具披针形小苞片1枚，早落；萼片5，两面均被短柔毛，具缘毛，花后脱落，外面3枚小，卵形，长约2毫米，先端急尖．里面2枚大，椭圆形至圆形，长约4毫米，先端圆形；花瓣5，白黄色，分离，椭圆形或长圆状披针形，长约7毫米，先端钝，具细缘毛；雄蕊8，长4（-8）毫米，分离，下部被长柔毛，花药椭圆形，长约0.5毫米，基底着生，子房瓶状，密被柔毛，径约1毫米，具胚珠4粒，花柱长3-6毫米，基部疏被柔毛，柱头头状。核果球形，淡黄色，径1.5-2厘米，被柔毛，后变无毛，基部具1盘状环和花被脱落之疤痕，具种子1粒；果柄圆柱形，粗壮，长约5毫米，被短柔毛。种子近球形，淡黄色，径约8毫米。花期3-5月，果期4-7月。
产广东、海南、广西；生于海拔150-600米的山林中。模式标本采自海南五指山。
该种木材坚硬致密，可供建筑用材。
《Flora of China》 Vol. 11 (2008)
Xanthophyllum hainanense Hu
黄叶树 huang ye shu
Trees 5-20 m tall; bark gray, longitudinally thinly fissured. Branchlets terete, slender, glabrous. Petiole 6-10 mm, transversely rugose, sulcate adaxially; leaf blade yellow-green when dry, ovate-elliptic to oblong-lanceolate, 4-12 × 1.5-5 cm, leathery, both surfaces glabrous, midvein and lateral veins raised on both surfaces, lateral veins 9-11 pairs, anastomosing near margin, veinlets reticulate, raised abaxially, distinct adaxially, base cuneate or obtuse, margin sometimes undulate, apex long acuminate. Racemes or small panicles axillary or terminal, 3-9 cm; peduncles and pedicels densely pubescent; bracteole 1, caducous, lanceolate. Flowers fragrant, small. Sepals with both surfaces pubescent, ciliate; outer 3 ovate, small, ca. 2 mm, apex acute; inner 2 elliptic to oblong, large, ca. 4 mm, apex rounded. Petals yellow-white, elliptic or oblong-lanceolate, ca. 7 mm, apex obtuse, thinly ciliate. Stamens 8, free, 4(-8) mm, lower parts villous; anthers basifixed, ellipsoidal, ca. 0.5 mm. Ovary pitcher-shaped, ca. 1 mm in diam., densely pubescent; ovules 4; style 3-6 mm, slightly pubescent at base; stigma capitate. Drupe yellowish, 1.5-2 cm in diam., pubescent or subglabrous; fruit stalk terete, ca. 5 mm, stout, pubescent. Seed yellowish, subglobose, ca. 8 mm in diam. Fl. Mar-May, fr. Apr-Jul.
Mountain forests; 100-600 m. Guangdong, Guangxi, Hainan [Vietnam].
别名：岭乌大;细叶青蓝木;青蓝;黄壳果;黄肖;黄杨;黄枝木;青兰;深蓝;门力;再生木;毛丹;青蓝木;
科名：远志科 Polygalaceae
属名：黄叶树属 Xanthophyllum
4.黄叶树（中国高等植物图鉴）
Xanthophyllum hainanense Hu in Journ. Arn. Arb. 6:142. 1925; Gagnep. in Lecomte, Fl. Gen. Indo-Chine, Suppl. 1: 218. 1939; 海南植物志1: 368, 图189. 1964;中国高等植物图鉴2: 575, 图2880. 1972;广东植物志2:61, 图41. 1991.——X. racemo-sum auct. non Chodat: G. W. Groff, Ding et E. H. Groff in Lingnan Agr. Rev. 2: 26. 1924; Merr. in Journ. Arn. Arb. 6: 134. 1925.
乔木，高5-20米；树皮暗灰色，具细纵裂；小枝圆柱形，纤细，无毛。叶片革质，卵状椭圆形至长圆状披针形，长4-12厘米，宽1.5-5厘米，先端长渐尖，基部楔形至钝，全缘，有时波状，两面均无毛，干时黄绿色，主脉及侧脉在两面突起，侧脉每边9-11条，弧曲，于边缘网结，细脉网状，上面明显，背面突起；叶柄长6-10毫米，具横纹，上面具槽。总状花序或小型圆锥花序腋生或顶生，长3-9厘米，总花梗及花梗密被短柔毛；花小，芳香，具披针形小苞片1枚，早落；萼片5，两面均被短柔毛，具缘毛，花后脱落，外面3枚小，卵形，长约2毫米，先端急尖．里面2枚大，椭圆形至圆形，长约4毫米，先端圆形；花瓣5，白黄色，分离，椭圆形或长圆状披针形，长约7毫米，先端钝，具细缘毛；雄蕊8，长4（-8）毫米，分离，下部被长柔毛，花药椭圆形，长约0.5毫米，基底着生，子房瓶状，密被柔毛，径约1毫米，具胚珠4粒，花柱长3-6毫米，基部疏被柔毛，柱头头状。核果球形，淡黄色，径1.5-2厘米，被柔毛，后变无毛，基部具1盘状环和花被脱落之疤痕，具种子1粒；果柄圆柱形，粗壮，长约5毫米，被短柔毛。种子近球形，淡黄色，径约8毫米。花期3-5月，果期4-7月。
产广东、海南、广西；生于海拔150-600米的山林中。模式标本采自海南五指山。
该种木材坚硬致密，可供建筑用材。
《Flora of China》 Vol. 11 (2008)
Xanthophyllum hainanense Hu
黄叶树 huang ye shu
Trees 5-20 m tall; bark gray, longitudinally thinly fissured. Branchlets terete, slender, glabrous. Petiole 6-10 mm, transversely rugose, sulcate adaxially; leaf blade yellow-green when dry, ovate-elliptic to oblong-lanceolate, 4-12 × 1.5-5 cm, leathery, both surfaces glabrous, midvein and lateral veins raised on both surfaces, lateral veins 9-11 pairs, anastomosing near margin, veinlets reticulate, raised abaxially, distinct adaxially, base cuneate or obtuse, margin sometimes undulate, apex long acuminate. Racemes or small panicles axillary or terminal, 3-9 cm; peduncles and pedicels densely pubescent; bracteole 1, caducous, lanceolate. Flowers fragrant, small. Sepals with both surfaces pubescent, ciliate; outer 3 ovate, small, ca. 2 mm, apex acute; inner 2 elliptic to oblong, large, ca. 4 mm, apex rounded. Petals yellow-white, elliptic or oblong-lanceolate, ca. 7 mm, apex obtuse, thinly ciliate. Stamens 8, free, 4(-8) mm, lower parts villous; anthers basifixed, ellipsoidal, ca. 0.5 mm. Ovary pitcher-shaped, ca. 1 mm in diam., densely pubescent; ovules 4; style 3-6 mm, slightly pubescent at base; stigma capitate. Drupe yellowish, 1.5-2 cm in diam., pubescent or subglabrous; fruit stalk terete, ca. 5 mm, stout, pubescent. Seed yellowish, subglobose, ca. 8 mm in diam. Fl. Mar-May, fr. Apr-Jul.
Mountain forests; 100-600 m. Guangdong, Guangxi, Hainan [Vietnam].