白毛子楝树查看源代码讨论查看历史
白毛子楝树 |
中文学名:白毛子楝树 界:植物界 门:被子植物门 纲:双子叶植物纲 目:桃金娘目 科:桃金娘科 属:子楝树属 种:白毛子楝树 分布区域:海南岛 |
白毛子楝树是桃金娘科,子楝树属的一种植物。属于灌木,嫩枝纤细,被白色长茸毛。叶片纸质或薄革质,披针形。花期6- 9月。产于海南岛。 [1]
白毛子楝树形态特征
叶长3-6.5厘米,宽1-2.5厘米,顶端尾状渐尖,基部近圆形或钝,初时上下两面被毛,以后变无毛,在两面有多数细小的腺点,侧脉约1.2对,不明显;叶柄极短,长约2毫米。花单生或2朵聚伞状,腋生;花梗长3-10毫米,被长丝毛;小苞片线形,长5-7毫米,被毛;萼管被长丝毛,萼片5,线状披针形,长约5毫米,宿存,被毛;花瓣披针形,长5-6毫米,被毛,先端长尖;雄蕊比花瓣短,花丝无毛;花柱约与雄蕊等长。
浆果球形,被毛,直径4-5毫米。在具有5数花的种类当中,是最具明显特征的种。[2]
Decaspermum allbociliatum Merr. et Perry in Journ. Arn. Arb. 19: 202. 1938; 海南植物志2: 10. 1965. Shrubs, to 4 m tall. Branchlets terete, slender, wooly with long trichomes. Petiole 1-2 mm, tomentose; leaf blade narrowly ovate to oblong-lanceolate, 2.5-6 × 1-2.5 cm, subleathery to stiffly papery, sericeous with long trichomes when young but becoming sparsely pubescent, midvein abaxially raised and adaxially impressed, secondary veins 8-10 on each side of midvein and inconspicuous, base obtuse, apex long acuminate with a 0.5-1.5 cm acumen. Flowers bisexual, axillary, solitary or occasionally 2, 5-merous, white villous; bracteoles linear, 5-7 mm, persistent, villous. Open flowers unknown. Fruit subglobose, 4-5 mm in diam., 6-loculed, 6-ribbed, pubescent; persistent calyx lobes narrowly triangular, 3-5 × ca. 1 mm, pubescent. Seeds 2 per locule, ca. 2 mm. Fr. Mar-May.
白毛子楝树生长环境
白毛子楝树生长于低海拔至中海拔的森林中和林谷溪边。