栏目

双舌千里光Senecio biligulatus W. W. Smith

双舌千里光Senecio biligulatus W. W. Smith

科名:菊科 Compositae

属名:千里光属 Senecio

《中国植物志》第77(1)卷268页
  34.双舌千里光 图版57: 1-5
  Senecio biligulatus W. W. Smith in Journ. Asiat. Soc. Bengal n. s. 7: 69. 1911; Kitam. et Gould. in Hara, Enumeu. Flower. Pl, Nepel. 3: 41. 1982. C. Jeffrey et Y. L. Chen in Kew Bull. 39 (2): 393. 1984; 横断山区维管植物下册: 2099. 1994. ——Senecio ramsbottomii Hand. -Mazz. in Journ. Bot. 76: 287. 1938; S. Y. Hu in Quart. Journ. Taiwan Mus. 21: 140. 1968. ——Senecio gyirongensis Y. L. Chen et K. Y. Pan in Acta Phytotax. Sin. 19: 94. 1981;西藏植物志4: 811. 1985.
  多年生根状茎草本,根状茎粗,径达10毫米,具多数纤维状根。茎单生,直立,高60-90厘米,上部弯曲,被黄褐色柔毛或无毛。基生叶在花期枯萎,下部和中部茎叶三角形或三角状披针形,长7-12厘米,宽2-5厘米,顶端渐尖,基部心形至箭形或近戟形,有时大头状2-4裂,边缘有不规则粗齿,上面有贴生柔毛,下面常紫色,沿脉具短柔毛或无毛;羽状脉,侧脉9对;叶脉在下面较明显;叶柄上部有多少间断的翅,向基部变成相连接且渐宽的翅,基部具耳;耳半抱茎,具齿;上部叶渐小,无柄,三角状披针形至线状披针形,长5-10厘米,宽1-2厘米,渐尖,基部楔形,常大头羽状浅裂,基部具连合的耳。头状花序小,有舌状花,多数密集成顶生密复伞房花序;花序梗极短,长1-2毫米,有黄褐色柔毛,具1-2细小苞片。总苞圆柱形,长5毫米,宽约1毫米,具外层苞片;苞片5-7,极小,线状钻形,上端黑色;总苞片5-6,线形,长3毫米,钝,上端黑色,草质,边缘狭干膜质,外面有疏短柔毛。舌状花2;管部长2毫米;舌片黄色,长4毫米,宽1毫米,顶端具3细齿;管状花2-3,花冠黄色,长6毫米,管部长2.3毫米,檐部漏斗状;裂片卵状长圆形,1.2毫米,尖。花药长1.5 毫米,基部具钝耳;附片卵状披针形;花药颈部短而细,向基部稍膨大。花柱分枝长0.7毫米,顶端截形,有乳头状毛。瘦果圆柱形,长1毫米,有疏短微毛;冠毛白色,长3.5毫米。花期6-9月。
  产西藏(亚东、吉隆、察隅)。生于山坡开旷处,海拔3000-3900米。尼泊尔、锡金、不丹和缅甸也有分布。模式采自锡金。
形态特征:多年生根状茎草本,根状茎粗,径达10毫米,具多数纤维状根。茎单生,直立, 高60—90厘米,上部弯曲,被黄褐色柔毛或无毛。基生叶在花期枯萎,下部和中部茎 叶三角形或三角状披针形,长7—12厘米,宽2—5厘米,顶端渐尖,基部心形至箭形 或近戟形,有时大头状2—4裂,边缘有不规则粗齿,上面有贴生柔毛,下面常紫色, 沿脉具短柔毛或无毛;羽状脉,侧脉9对;叶脉在下面较明显;叶柄上部有多少间断的 翅,向基部变成相连接且渐宽的翅,基部具耳;耳半抱茎,具齿;上部叶渐小,无柄, 三角状披针形至线状披针形,长5—10厘米,宽1—2厘米,渐尖,基部楔形,常大头羽状浅裂,基部具连合的耳。头状花序小,有舌状花,多数密集成顶生密复伞房花序; 花序梗极短,长1--2毫米,有黄褐色柔毛,具1—2细小苞片。总苞圆柱形,长5毫 米,宽约1毫米,具外层苞片;苞片5—7,极小,线状钻形,上端黑色;总苞片5—6, 线形,长3毫米,钝,上端黑色,草质,边缘狭干膜质,外面有疏短柔毛。舌状花2; 管部长2毫米;舌片黄色,长4毫米,宽1毫米,顶端具3细齿;管状花2—3,花冠黄 色,长6毫米,管部长2.3毫米,檐部漏斗状;裂片卵状长圆形,1.2毫米,尖。花药 长1.5毫米,基部具钝耳;附片卵状披针形;花药颈部短而细,向基部稍膨大。花柱分 枝长0.7毫米,顶端截形,有乳头状毛。瘦果圆柱形,长1毫米,有疏短微毛;冠毛白 色,长3.5毫米。 花期6—9月。
产地分布:产西藏(亚东、吉隆、察隅)。生于山坡开旷处,海拔3000—3900米。尼泊尔、锡金、不丹和缅甸也有分布。模式采自锡金。
参考文献:SeneciobiligulatusW.W.SmithinJourD.Asiat.Soc.Bengaln.S.7:69.1911;Kitarn.EtGould.InHara,Enumeu.Flower.Pl,Nepel.3:41.1982.C.JeffreyetY.LChenKewBull。39(2):393.1984;横断山区维管植物下册:2099.1994.--$enecioramsbottomiiHand.—Mazz.InJOUm.Bot.76:287.]938;S.Y.HuinQuart.JOLlrn.TaiwanMus.21:140.1968.——SeneciogyirongensisY.LChenetK.Y.PaninActaPhytotax.Sin.19:94.1981;西藏植物志4:811.1985.

《Flora of China》 Vol. 20-21 (2011)
35. Senecio biligulatus W. W. Smith, J. Proc. Asiat. Soc. Bengal. 7: 69. 1911.
双舌千里光 shuang she qian li guang Senecio gyirongensis Y. L. Chen & K. Y. Pan; S. ramsbottomii Handel-Mazzetti.
Herbs, perennial, rhizomatous. Stem solitary, erect, 60-90 cm tall, flexuous, fulvous pubescent or glabrous. Basal leaves withered by anthesis; lower and median stem leaf petiole ± interruptedly winged in upper part, basally continuously and gradually more broadly winged, auriculate; auricle subamplexicaul, dentate; blade abaxially often purple, triangular or triangular-lanceolate, 7-12 × 2-5 cm, abaxially puberulent mostly on veins or glabrous, adaxially obscurely scattered pubescent, pinnately veined, veins rather prominent abaxially, base cordate to sagittate or subhastate and sometimes lyrately 2-4-lobed, margin irregularly coarsely dentate, apex acuminate. Upper leaves sessile, gradually smaller upward, triangular-lanceolate to linear-lanceolate, 5-10 × 1-2 cm, base cuneate, margin often lyrate-pinnatifid, confluent with auricle at base, apex acuminate-attenuate. Capitula small, radiate, numerous, arranged in dense terminal compound corymbs; peduncles very short, 1-2 mm, fulvous pubescent, minutely 1- or 2-bracteolate. Involucres cylindric, ca. 5 × 1 mm, calyculate; bracts of calyculus 5-7, minute, linear-subulate, black at apex; phyllaries 5 or 6, linear, ca. 3 mm, herbaceous, sparsely puberulent, margin narrowly scarious, apically obtuse and black. Ray florets 2; corolla tube ca. 2 mm; lamina yellow, ca. 4 × 1 mm, apically 3-denticulate. Disk florets 2 or 3; corolla yellow, ca. 6 mm, with ca. 2.3 mm tube and funnelform limb; lobes ovate-oblong, ca. 1.2 mm, apically acute. Anthers ca. 1.5 mm, basally obtuse-auriculate, appendages ovate-lanceolate; antheropodia rather short, slender, basally slightly dilated. Style branches ca. 0.7 mm. Achenes cylindric, ca. 1 mm, sparsely puberulent. Fl. Jun-Sep.Open places; 3000-3900 m. Xizang [Bhutan, India (Sikkim), Myanmar, Nepal].

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