墨脫尖子木檢視原始碼討論檢視歷史
墨脫尖子木 |
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中文學名:墨脫尖子木 界:植物界 門:被子植物門 綱:雙子葉植物綱 目:桃金娘目 科:野牡丹科 屬:尖子木屬 種:剛毛尖子木 分布區域:西藏 |
墨脫尖子木(mò tuō jiān zǐ mù),學名 Oxyspora cernua (Roxburgh) J. D. Hooker & Thomson ex Triana,異名:Melastoma cernuum ,灌木1-2米高。 莖4棱,軟鱗片狀星狀。 葉柄0.5-4厘米,密被軟鱗片; 葉片卵形,橢圓狀卵形,或者近橢圓形,花序頂生,一聚傘狀圓錐花序,20-40厘米,軟鱗片狀;花序梗具狹翅,基部具或苞片;產於600-1200米西藏東南部 。 [1]
形態特徵
灌木1-2米高。 莖4棱,軟鱗片狀星狀。 葉柄0.5-4厘米,密被軟鱗片; 葉片卵形,橢圓狀卵形,或者近橢圓形, 15-32 * 5-12 厘米,硬紙質;
背面無毛, 軟鱗片狀的只在脈上,正面具軟鱗片或無毛,次脈在中脈兩邊各2,基部圓形到近心形,邊緣全緣或近全緣,先端漸尖。花序頂生,一聚傘狀圓錐花序,20-40厘米,軟鱗片狀;
花序梗具狹翅,基部具或苞片; 苞片無梗,葉狀, 2-6 * 1.5-4.5 厘米,基部心形。 小苞片和小苞片披針形到鑽形,1-3毫米。托杯狹漏斗狀,0.5-1厘米,縱向8肋,無毛或軟鱗片狀。
萼裂片寬三角狀卵形,1-1.2毫米,先端銳尖和具細尖。 花瓣粉紅色到紅色,長圓形, 1-1.2 * 0.6-0.8 厘米。較長的雄蕊具藥隔膨脹但基部不延長。
短雄蕊具藥隔而不是距。 蒴果倒卵球形, 9-13 * 長約5毫米; 托杯狹漏斗狀,軟鱗片狀。 花期9-11月。
Melastoma cernuum Roxburgh, Fl. Ind., ed. 1832, 2: 404. 1832 ["cernua"].Shrubs 1-2 m tall. Stems 4-sided, furfuraceous stellate. Petiole 0.5-4 cm, densely furfuraceous; leaf blade ovate, elliptic-ovate, or subelliptic, 15-32 × 5-12 cm, stiffly papery, abaxially glabrous, furfuraceous only on veins, adaxially furfuraceous or glabrous, secondary veins 2 on each side of midvein, base rounded to subcordate, margin entire or subentire, apex acuminate.
Inflorescences terminal, a cymose panicle, 20-40 cm, furfuraceous; peduncle narrowly winged, basally with 2 or 3 bracts; bracts sessile, leaflike, 2-6 × 1.5-4.5 cm, base cordate. Bractlets and bracteoles lanceolate to subulate, 1-3 mm.
Hypanthium narrowly funnelform, 0.5-1 cm, longitudinally 8-ribbed, glabrous or furfuraceous. Calyx lobes broadly triangular-ovate, 1-1.2 mm, apex acute and apiculate. Petals pink to red, oblong, 1-1.2 × 0.6-0.8 cm.
Longer with connective swollen but not extended at base. Shorter stamens with connective not spurred. Capsule obovoid, 9-13 × ca. 5 mm; hypanthium narrowly funnelform, furfuraceous. Fl. Sep-Nov.
產地生境
Mixed forest margins, thickets, valleys, moist places; 600-1200 m. SE Xizang [Bhutan, India].
混交林邊緣,灌叢,山谷,潮濕的地方; 600-1200米西藏東南部 [不丹,印度 ].