栏目

长苞十大功劳Mahonia longibracteata Takeda

长苞十大功劳Mahonia longibracteata Takeda

别名:牛肋巴刺;黄连;黄莲;大黄连;

科名:小檗科 Berberidaceae

属名:十大功劳属 Mahonia

《中国植物志》第29卷237页
  20.长苞十大功劳
  Mahonia longibracteata Takeda in Notes Bot. Gard. Edinb. 6: 236, 1917; Ahrendt in Journ, Linn. Soc. Bot. 57: 303, 1961; 云南植物志7: 18, 图版8, 1-9, 1997.
  灌木,高0.5-3米。叶长圆形,长14-23厘米,宽6-11厘米,具4-5对小叶,最下一对小叶距叶柄基部约1厘米,上面黄绿色,有光泽,网脉和中脉显著隆起,背面淡黄绿色,网脉不显,节间长2.5-4厘米,叶轴粗2-3毫米;最下一对小叶卵形,长1.5-2厘米,宽1-2.2厘米,每边具2-3锯齿,以上小叶长圆形至卵状披针形,长3-8厘米,宽2-3.5厘米,基部略偏斜,圆形或阔楔形,边缘每边具(3-)4-7(-11)牙齿,先端渐尖,顶生小叶最大,小叶柄长0.4-1.5厘米。总状花序6-9个簇生,长6-9厘米;芽鳞狭卵形,长1.5-2厘米,宽6-7毫米;花梗长约5毫米;苞片披针形,长7-9毫米,宽约2.5毫米;花黄色;外萼片阔披针形,长3-6毫米,宽1-2.5毫米,中萼片长圆形,长4-6毫米,宽2-3毫米,内萼片长圆状倒卵形,长5-6毫米,宽2.5-3毫米;花瓣长圆状椭圆形,长4.1-4.5毫米,宽2-3毫米,基部腺体不很明显,先端全缘;雄蕊长约3毫米,药隔狭,不延伸,顶端平截;子房长约2.2毫米,近无花柱,胚珠2枚。浆果长圆形,长约10毫米,直径约6毫米,亮红色,不被白粉。花期4-5月,果期5-10月。
  产于云南、四川。生于山坡林下、灌丛中、阴坡或铁杉林下。海拔1900-3300米。模式标本采自大理东侧山坡。
  本种的苞片远长于花梗,因而不同于该属其他种。但本种在花序和苞片与花梗长度的比例上,非常近似峨眉十大功劳Mahonia polyodonta,两者不同仅在于本种小叶边缘牙齿较少、背面网脉较不显著以及腺体较不明显。

《Flora of China》 Vol. 19 (2011)
Mahonia longibracteata  Takeda Notes Roy. Bot. Gard. Edinburgh. 6: 236. 1917.
长苞十大功劳   chang bao shi da gong lao
Berberis longibracteata (Takeda) Laferrière.
Shrubs, 0.5-3 m tall. Leaves abaxially pale yellowish green, adaxially shiny, oblong, 14-23 × 6-11 cm, with 4 or 5 pairs of leaflets, lowest pair ca. 1 cm above base of petiole, abaxially with inconspicuously raised venation, adaxially with fairly close finely impressed reticulation; rachis 2-3 mm in diam.; internodes 2.5-4 cm, decreasing in length upward; lowest leaflets ovate, 1.5-2 × 1.2-2.2 mm, with 2 or 3 teeth on each side, those above oblong to ovate-lanceolate, 3-8 × 2-3.5 cm, base suboblique, cuneate-rounded, margin with (3 or)4-7(-11) teeth on each side, apex mucronate or acuminate; terminal leaflet largest, petiolule 0.4-1.5 cm. Inflorescence 5-9-fascicled racemes, 6-9 cm; bracts of inflorescence narrowly ovate, 1.5-2 cm × 6-7 mm. Pedicel ca. 5 mm; floral bracts lanceolate, 7-9 × ca. 2.5 mm. Sepals yellow; outer sepals broadly lanceolate, 3-6 × 1-2.5 mm; median sepals oblong, 4-6 × 2-3 mm; inner sepals oblong-obovate, 5-6 × 2.5-3 mm. Petals oblong-elliptic, 4.1-4.5 × 2-3 mm, base with indistinct glands, apex entire. Stamens ca. 3 mm; anther connective narrow, not prolonged, truncate. Ovary ca. 2.2 mm; ovules 2. Berry bright red, not pruinose, oblong, ca. 10 × 6 mm. Fl. Mar-May, fr. May-Oct.
● Forests, thickets, shaded slopes, sometimes in Tsuga forests; 1900-3300 m. SE Sichuan, Yunnan.

TOP