光葉白頭樹
光葉白頭樹 |
中文學名:光葉白頭樹 拉丁學名:Garuga pierrei Guill. 界:植物界 門:被子植物門 綱:雙子葉植物綱 亞 綱:原始花被亞綱 目:芸香目 亞 目:芸香亞目 科:橄欖科 屬:嘉欖屬 種:光葉白頭樹 |
光葉白頭樹(拉丁學名:Garuga pierrei Guill.)橄欖科,樹皮綠褐色。頂生小葉柄。圓錐花序腋生和側生,花黃白色,花瓣長圓狀披針形,花絲基部被長絨毛;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]
目錄
光葉白頭樹形態特徵
光葉白頭樹,喬木,高8-15米,樹皮綠褐色。
葉有小葉11-17,葉軸及小葉片被短的細柔毛;最下一對小葉過渡為托葉,長橢圓形,長約0.3厘米,早落;中間各對小葉卵狀橢圓形至長橢圓形,長4-10厘米,寬2-4厘米;頂端急尖,基部圓形至闊楔形,邊緣具圓齒,側脈10-15對;小葉柄長0-0.3厘米,頂生小葉柄長0.2-2.5厘米。
圓錐花序腋生和側生,集於小枝頂部,長10-18厘米,被淡黃色細柔毛;花黃白色,長約0.6厘米,花梗長0.1-0.4厘米;萼片三角形,兩面被柔毛;花瓣長圓狀披針形,長0.4-0.5厘米,外被柔毛;雄蕊近等長,花絲基部被長絨毛;花盤裂片三角狀梯形;子房球形,多少5淺裂,無毛,具短柄,花柱多少被疏柔毛;柱頭5淺裂。
果球形,長1-2.3厘米,直徑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;雲南植物志1: 195, 圖版45: 17-18. 1977;雲南種子植物名錄, 上冊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.
光葉白頭樹生長環境
生於海拔760-1000米的山谷或路邊疏林中。