光叶白头树
光叶白头树 |
中文学名:光叶白头树 拉丁学名:Garuga pierrei Guill. 界:植物界 门:被子植物门 纲:双子叶植物纲 亚 纲:原始花被亚纲 目:芸香目 亚 目:芸香亚目 科:橄榄科 属:嘉榄属 种:光叶白头树 |
光叶白头树(拉丁学名:Garuga pierrei Guill.)橄榄科,树皮绿褐色。顶生小叶柄。圆锥花序腋生和侧生,花黄白色,花瓣长圆状披针形,花丝基部被长绒毛;子房球形,花柱多少被疏柔毛;果球形,花期4~5月,果期9~10月。 [1]
目录
光叶白头树形态特征
光叶白头树,乔木,高8-15米,树皮绿褐色。
叶有小叶11-17,叶轴及小叶片被短的细柔毛;最下一对小叶过渡为托叶,长椭圆形,长约0.3厘米,早落;中间各对小叶卵状椭圆形至长椭圆形,长4-10厘米,宽2-4厘米;顶端急尖,基部圆形至阔楔形,边缘具圆齿,侧脉10-15对;小叶柄长0-0.3厘米,顶生小叶柄长0.2-2.5厘米。
圆锥花序腋生和侧生,集于小枝顶部,长10-18厘米,被淡黄色细柔毛;花黄白色,长约0.6厘米,花梗长0.1-0.4厘米;萼片三角形,两面被柔毛;花瓣长圆状披针形,长0.4-0.5厘米,外被柔毛;雄蕊近等长,花丝基部被长绒毛;花盘裂片三角状梯形;子房球形,多少5浅裂,无毛,具短柄,花柱多少被疏柔毛;柱头5浅裂。
果球形,长1-2.3厘米,直径1.2-1.6厘米。花期4-5月,9-10月果熟。
Garuga pierrei Guill. Rev. Gen. Bot. 19. 1907, et Lecomte, Fl. Gen. lndo-chine 1: 719. 1911, et Suppl. 1: 682. 1946; Lam in Bull. Jard. Bot. Buitenz. ser. 3 (12): 331, fig. 7c. 1932; Kalkm. in Blumea 7 (2): 467, fig. 3c. 1953;云南植物志1: 195, 图版45: 17-18. 1977;云南种子植物名录, 上册826, 1984.——Garuga pinnata Roxb. var. pierrei (Guill.)Gretzoiu, Acta Fauna et Flora Univ., ser. 2, 1 (9): 6. 1936.
Trees, 8-15 m tall; bark greenish brown. Leaves with 11-17 leaflets; rachis and leaflet blades shortly pubescent; petiolules absent to 3 mm, terminal petiolule 2-25 mm; lowest leaflet blades stipulelike, oblong-elliptic, ca. 3 mm, early deciduous, middle blades ovate-elliptic or oblong-elliptic, 4-10 × 2-4 cm, base rounded or broadly cuneate, margin crenate-serrate, apex acute; lateral veins 10-15 pairs. Panicles axillary or lateral, fascicled toward ends of branches, 10-18 cm, pubescent with pale yellow hairs. Flowers yellowish white, ca. 6 mm; pedicel 1-4 mm. Sepals deltoid, pubescent on both surfaces. Petals oblong-lanceolate, 4-5 mm, abaxially pubescent. Stamens nearly equal; filaments tomentose at base; disk lobes deltoid-trapeziform. Ovary globose, ± shallowly 5-lobed, glabrous, with short stipe; style ± sparsely pubescent; stigma shallowly 5-lobed. Fruit globose, 10-23 × 12-16 mm. Fl. Apr-May, fr. Sep-Oct.
光叶白头树生长环境
生于海拔760-1000米的山谷或路边疏林中。