白毛子楝樹檢視原始碼討論檢視歷史
白毛子楝樹 |
中文學名:白毛子楝樹 界:植物界 門:被子植物門 綱:雙子葉植物綱 目:桃金娘目 科:桃金娘科 屬:子楝樹屬 種:白毛子楝樹 分布區域:海南島 |
白毛子楝樹是桃金娘科,子楝樹屬的一種植物。屬於灌木,嫩枝纖細,被白色長茸毛。葉片紙質或薄革質,披針形。花期6- 9月。產於海南島。 [1]
白毛子楝樹形態特徵
葉長3-6.5厘米,寬1-2.5厘米,頂端尾狀漸尖,基部近圓形或鈍,初時上下兩面被毛,以後變無毛,在兩面有多數細小的腺點,側脈約1.2對,不明顯;葉柄極短,長約2毫米。花單生或2朵聚傘狀,腋生;花梗長3-10毫米,被長絲毛;小苞片線形,長5-7毫米,被毛;萼管被長絲毛,萼片5,線狀披針形,長約5毫米,宿存,被毛;花瓣披針形,長5-6毫米,被毛,先端長尖;雄蕊比花瓣短,花絲無毛;花柱約與雄蕊等長。
漿果球形,被毛,直徑4-5毫米。在具有5數花的種類當中,是最具明顯特徵的種。[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.
白毛子楝樹生長環境
白毛子楝樹生長於低海拔至中海拔的森林中和林谷溪邊。