木瓣树Xylopia vielana Pierre
木瓣树Xylopia vielana Pierre
1．木瓣树（植物分类学报） 图版32
Xylopia vielana Pierre, Fl. For. Cochinch. 1: tab. 34, 1881; Finet et Gagnep. in Bull. Soc. Bot. France 53, Mem. 4: 128. 1906, et in Lec. Fl. Gen. Indo-Chine 1: 94. 1907; Ast in Humb. Suppl. Fl. Gen. Indo-Chine 1: 105. 1938; 李秉滔, 植物分类学报14 (1): 104. 1976.
乔木，高达20米；枝条黑褐色，密被圆形皮孔，小枝上部幼嫩时密被短绒毛，老渐几无毛。叶纸质，排成2列，椭圆形或卵圆形，长3-7厘米，宽1.2-3厘米，顶端钝或短渐尖，基部钝或圆形，鲜时淡绿色，干后叶面灰褐色，被紧贴疏短柔毛，叶背褐色，被短绒毛；中脉上面微凹，下面凸起，侧脉每边6-7条，上面扁平，下面略凸起，不很明晰；叶柄长4-8毫米，被短绒毛，老渐几无毛。花单朵腋生，下弯，长约2厘米，直径5-8毫米，花蕾尖帽状，有三稜；花梗2-3毫米，被黄白色短绒毛，基部或近基部有小苞片；小苞片宽卵形，顶端圆形，外面被短毛茸；萼片宽卵圆形或近半圆形，长和宽约4毫米，三分之一下面合生，外面密被黄白色短绒毛，内面无毛；外轮花瓣长圆状披针形，长1.5厘米，宽3毫米，顶端钝，基部宽，截形，厚，木质，内弯，两面密被黄白色短绒毛，内轮花瓣线状披针形，长1.4厘米，宽2毫米，内面中部中肋凸起呈四菱形，两面被短绒毛；雄蕊长圆形，长2.5毫米，药室有横隔纹，药隔长三角形，被短柔毛；心皮长4毫米，密被长柔毛，花柱细长，柱头棍棒状，外弯，被长柔毛，每心皮有胚珠5颗，侧生。果长圆形或长圆状披针形，两端渐尖，长2.5-3.5厘米，直径8-10毫米，种子间有缢缩，内有种子3-5颗；种子卵圆形；果柄长1.5厘米；总果柄长约1厘米，有皮孔。花期春夏季，果期夏秋季。
产于广西南部。生于山地林中。越南、柬埔寨也有。本种模式标本采自越南河内。
《Flora of China》 Vol. 19 (2011)
Xylopia vielana Pierre Fl. Forest. Cochinch. t. 34. 1881.
木瓣树 mu ban shu
Trees to 20 m tall. Branches dark brown, densely tomentulose when young, glabrescent, densely lenticellate. Petiole 4-8 mm, tomentose to glabrescent; leaf blade elliptic to ovate, 3-7 × 1.2-3 cm, papery, abaxially tomentulose, adaxially appressed pubescent, secondary veins 6 or 7 on each side of midvein, base obtuse to rounded, apex obtuse to shortly acuminate. Inflorescences axillary, 1-flowered. Flower buds lanceolate, with 3 longitudinal ribs. Flower ca. 2 × 0.5-0.8 cm, recurved. Pedicel 2-3 mm, tomentulose, bracteolate at apex. Calyx shallowly 3-lobed; sepals broadly ovate, ca. 4 × 4 mm, outside densely tomentulose, inside glabrous. Outer petals lanceolate, ca. 15 × 3 mm, concave, thick, woody when dry, tomentulose; inner petals linear-lanceolate, ca. 14 × 2 mm, tomentulose, with adaxially elevated central rib. Stamens oblong, ca. 2.5 mm; anther locules transversely septate; connectives narrowly 3-angular, pubescent. Carpels ca. 4 mm, densely villous; styles slender; stigmas clavate, villous. Monocarp stipes ca. 1.5 cm; monocarps oblong, 2.5-3.5 × 0.8-1 cm. Seeds 3-8 per monocarp, ovoid. Fl. Mar-Jun, fr. Jun-Oct.
Forested slopes; 400-700 m. S Guangxi [Cambodia, N Thailand, Vietnam].
科名：番荔枝科 Annonaceae
属名：木瓣树属 Xylopia
1．木瓣树（植物分类学报） 图版32
Xylopia vielana Pierre, Fl. For. Cochinch. 1: tab. 34, 1881; Finet et Gagnep. in Bull. Soc. Bot. France 53, Mem. 4: 128. 1906, et in Lec. Fl. Gen. Indo-Chine 1: 94. 1907; Ast in Humb. Suppl. Fl. Gen. Indo-Chine 1: 105. 1938; 李秉滔, 植物分类学报14 (1): 104. 1976.
乔木，高达20米；枝条黑褐色，密被圆形皮孔，小枝上部幼嫩时密被短绒毛，老渐几无毛。叶纸质，排成2列，椭圆形或卵圆形，长3-7厘米，宽1.2-3厘米，顶端钝或短渐尖，基部钝或圆形，鲜时淡绿色，干后叶面灰褐色，被紧贴疏短柔毛，叶背褐色，被短绒毛；中脉上面微凹，下面凸起，侧脉每边6-7条，上面扁平，下面略凸起，不很明晰；叶柄长4-8毫米，被短绒毛，老渐几无毛。花单朵腋生，下弯，长约2厘米，直径5-8毫米，花蕾尖帽状，有三稜；花梗2-3毫米，被黄白色短绒毛，基部或近基部有小苞片；小苞片宽卵形，顶端圆形，外面被短毛茸；萼片宽卵圆形或近半圆形，长和宽约4毫米，三分之一下面合生，外面密被黄白色短绒毛，内面无毛；外轮花瓣长圆状披针形，长1.5厘米，宽3毫米，顶端钝，基部宽，截形，厚，木质，内弯，两面密被黄白色短绒毛，内轮花瓣线状披针形，长1.4厘米，宽2毫米，内面中部中肋凸起呈四菱形，两面被短绒毛；雄蕊长圆形，长2.5毫米，药室有横隔纹，药隔长三角形，被短柔毛；心皮长4毫米，密被长柔毛，花柱细长，柱头棍棒状，外弯，被长柔毛，每心皮有胚珠5颗，侧生。果长圆形或长圆状披针形，两端渐尖，长2.5-3.5厘米，直径8-10毫米，种子间有缢缩，内有种子3-5颗；种子卵圆形；果柄长1.5厘米；总果柄长约1厘米，有皮孔。花期春夏季，果期夏秋季。
产于广西南部。生于山地林中。越南、柬埔寨也有。本种模式标本采自越南河内。
《Flora of China》 Vol. 19 (2011)
Xylopia vielana Pierre Fl. Forest. Cochinch. t. 34. 1881.
木瓣树 mu ban shu
Trees to 20 m tall. Branches dark brown, densely tomentulose when young, glabrescent, densely lenticellate. Petiole 4-8 mm, tomentose to glabrescent; leaf blade elliptic to ovate, 3-7 × 1.2-3 cm, papery, abaxially tomentulose, adaxially appressed pubescent, secondary veins 6 or 7 on each side of midvein, base obtuse to rounded, apex obtuse to shortly acuminate. Inflorescences axillary, 1-flowered. Flower buds lanceolate, with 3 longitudinal ribs. Flower ca. 2 × 0.5-0.8 cm, recurved. Pedicel 2-3 mm, tomentulose, bracteolate at apex. Calyx shallowly 3-lobed; sepals broadly ovate, ca. 4 × 4 mm, outside densely tomentulose, inside glabrous. Outer petals lanceolate, ca. 15 × 3 mm, concave, thick, woody when dry, tomentulose; inner petals linear-lanceolate, ca. 14 × 2 mm, tomentulose, with adaxially elevated central rib. Stamens oblong, ca. 2.5 mm; anther locules transversely septate; connectives narrowly 3-angular, pubescent. Carpels ca. 4 mm, densely villous; styles slender; stigmas clavate, villous. Monocarp stipes ca. 1.5 cm; monocarps oblong, 2.5-3.5 × 0.8-1 cm. Seeds 3-8 per monocarp, ovoid. Fl. Mar-Jun, fr. Jun-Oct.
Forested slopes; 400-700 m. S Guangxi [Cambodia, N Thailand, Vietnam].