栏目

纤花千里光Senecio graciliflorus DC.

纤花千里光Senecio graciliflorus DC.

别名:细花千里光;多翼千里光;

科名:菊科 Compositae

属名:千里光属 Senecio

《中国植物志》第77(1)卷241页
  8. 纤花千里光
  Senecio graciliflorus DC. Prodr. 6: 365. 1838; C. B. Clarke, Comp. Ind. 188. 1876; Hand. -Mazz. Symb. Sin. 7: 1126. 1936; Kitam. in Hara Fl. East. Himal. 344. 1966; S. Y. Hu in Quart. Journ. Taiwan Mus. 21: 47. 1968; Koyama in Mem. Fac. Sc. Kyoto Univ. Ser. Biol. 2(2): 154. 1969;中国高等植物图鉴4: 567. 图6548. 1975; Lauener in Not. Bot. Gard. Edinb. 34: 363. 1976; Kitam. et Gould in Enumer. Flower. Pl. Nepal 3: 42. 1982; C. Jeffrey et Y. L. Chen in Kew Bull. 39(2); 367. 1984;西藏植物志4: 817. 1985;横断山区维管植物下册2097. 1994. ——Senecio mairiei Levl. in Repert. Sp. Nov. 12: 283. 1913, et Cat. Pl. Yunnan 52. 1916. ——Senecio pleopterus Diels in Not. Bot. Gard. Edinb. 5: 191. 1912; Hand. -Mazz. Symb. Sin. 7: 1126. 1936; S. Y. Hu in Quart. Journ. Taiwan Mus. 21. 137. 1968; 中国高等植物图鉴4: 568.图6550. 1975.——Senecio graciliflorus DC. var. pleopterus(Diels) Hand. -Mazz. in Notizbl. Bot. Gart. Berlin 13: 637. 1973.
  多年生草本,根状茎粗,稍木质,具密被绒毛的纤维状根。茎单生,直立,高50-120厘米上部分枝,幼时被疏柔毛,后变无毛。叶具柄,基生叶和下部茎叶在花期凋萎;中部茎叶全形卵形或卵状长圆形,长10-25厘米,宽6-12厘米,羽状分裂,顶生裂片长圆状披针形,渐尖或尾状渐尖,侧生裂片4-5对,长圆状披针形,长渐尖,具粗锯齿,纸质,上面被疏贴生短柔毛,下面沿脉被柔毛;叶柄细,长2-4.5厘米,基部略扩大,但无耳;上部叶渐小,浅裂,具少数裂片,最上部叶线状披针形至线形,长渐尖或尾状尖,具细锯齿。头状花序具不明显的舌状花,多数,在茎枝顶端及上部叶腋排成复伞房花序;花序梗细,长3-5毫米,被密黄褐色短柔毛,具线形小苞片。总苞狭圆柱形,长8-9毫米,宽1. 5-2毫米,具外层苞片;苞片4-5,线状钻形,长2-3毫米,被短柔毛;总苞片5,线形,长8毫米,宽1毫米,钝,上端具疏微毛,草质,边缘狭干膜质,具疏微毛,具不明显3脉。舌状花1-2;花冠黄色,丝状,上端截形或具远短于花柱枝的细舌片;管状花3,黄色,长8毫米,管部长3.5毫米,檐部漏斗状;裂片卵状三角形,长1毫米,尖,顶端被乳头状毛。花药长2.2毫米,基部具钝耳或戟状;附片卵状披针形;花药颈部较宽,基部稍膨大;花柱分枝长1. 8毫米,截形,被乳头状毛。瘦果圆柱形,长2.5毫米,无毛;冠毛白色,长4.5毫米。花期5-10月。
  产西藏(亚东)、四川(峨眉山)、云南(大理、丽江、中甸、永宁、独龙江、维西等)、贵州(Iochan)。生于草坡、林缘、林中开旷处或溪边,海拔2000-4 100米。克什米尔至锡金也有。模式采自印度库盟。
  Handel-Mazzetti(1937)曾将Senecio pleopterus Diels并入本种作为本种的一个变种,指出“该种仅以边缘花花冠退化而无舌片与本种不同”。但在Forrest 6491号标本有时也有小舌片。作者有机会曾检查了此两种的全部模式,发现本种的头状花序具不明显的舌状花,花冠由截形至具极小舌片,舌片通常远短于花柱分枝,故后者应并于本种。
形态特征:多年生草本,根状茎粗,稍木质,具密被绒毛的纤维状根。茎单生,直立,高50—120厘米上部分枝,幼时被疏柔毛,后变无毛。叶具柄,基生叶和下部茎叶在花期凋萎;中部茎叶全形卵形或卵状长圆形,长10—25厘米,宽6—12厘米,羽状分裂,顶生裂片长圆状披针形,渐尖或尾状渐尖,侧生裂片4—5对,长圆状披针形,长渐尖,具粗锯齿,纸质,上面被疏贴生短柔毛,下面沿脉被柔毛;叶柄细,长2—4.5厘米,基部略扩大,但无耳;上部叶渐小,浅裂,具少数裂片,最上部叶线状披针形至线形,长渐尖或尾状尖,具细锯齿。头状花序具不明显的舌状花,多数,在茎枝顶端及上部叶腋排成复伞房花序;花序梗细,长3—5毫米,被密黄褐色短柔毛,具线形小苞片。总苞狭圆柱形,长8—9毫米,宽1.5—2毫米,具外层苞片;苞片4—5,线状钻形,长2—3毫米,被短柔毛;总苞片5,线形,长8毫米,宽1毫米,钝,上端具疏微毛,草质,边缘狭干膜质,具疏微毛,具不明显3脉。舌状花1—2;花冠黄色,丝状,上端截形或具远短于花柱枝的细舌片;管状花3,黄色,长8毫米,管部长3.5毫米,檐部漏斗状;裂片卵状三角形,长1毫米,尖,顶端被乳头状毛。花药长2.2毫米,基部具钝耳或戟状;附片卵状披针形;花药颈部较宽,基部稍膨大;花柱分枝长1.8毫米,截形,被乳头状毛。瘦果圆柱形,长2,5毫米,无毛;冠毛白色,长4.5毫米。花期5—10月。
产地分布:产西藏(亚东)、四川(峨眉山)、云南(大理、丽江、中甸、永宁、独龙江、维西等)、贵州(10-chan)。生于草坡、林缘、林中开旷处或溪边,海拔2000—4100米。克什米尔至锡金也有。模式采自印度库盟。
参考文献:Senecio gracilifiorus DC.Prodr.6:365.1838;C.B.Clarke,Comp.Ind.188. 1876;Hand.—Mazz. Symb. Sin.7:1126. 1936;Kitam. In Hara F1. East. Himal. 344.1966;S. Y. Hu in Quart.Jouril. Taiwan Mus. 21:47. 1968;Koyama in Mere.Fac.Sc,Kyoto Univ.Ser.Bi01.2(2):154.1969;中国高等植物图鉴4:567.图6548.1975;Lauener in Not.Bot.Gard.Edinb.34:363。 1976;Kitam.eI GouldinEnumer.Flower.P1.Nepal 3:42. 1982;C.Jeffrey et Y.L.Chen in Kew Bull.39(2);367.1984;西藏植物志4:817.1985;横断山区维管植物下册2097. 1994.——Senecio mairiei L6v1.In Repert.Sp.Nov.12:283.1913,et Cat.P1. Yunnan 52.1916.——Senecio pleopterus Diels in Not.Bot.Gard.Edinb.5:191. 1912;Hand.—Mazz.Symb. Sin.7:1126. 1936;S. Y. Hu in Quart.Journ,Tai— wanMus.21:137.1968;中国高等植物图鉴4:568.图6550.1975.——Senecio gracil DC.var.Pleopterus(Diels)Hand.—Mazz.In Notizbl,Bot.Gart.Berlin 13:637.1973.

《Flora of China》 Vol. 20-21 (2011)
9. Senecio graciliflorus Candolle, Prodr. 6: 365. 1838.
纤花千里光 xian hua qian li guang Senecio graciliflorus var. pleopterus (Diels) Handel-Mazzetti; S. mairei H. Léveillé; S. pleopterus Diels.
Herbs, perennial, rhizomatous. Stem solitary, erect, 50-120 cm tall, branching in upper part, sparsely pubescent when young, glabrescent. Leaves petiolate, radical and lower stem leaves withered by anthesis; median stem leaf petiole 2-4.5 cm, slender, basally somewhat dilated but not auriculate; blade ovate or ovate-oblong, 10-25 × 6-12 cm, pinnatipartite into an oblong-lanceolate, acuminate or acuminate-caudate terminal lobe and 8-10 oblong-lanceolate, long acuminate, coarsely serrate lateral lobes, papery, sparsely shortly adpressed pubescent adaxially and especially on main veins abaxially. Upper leaves smaller, less deeply divided and with fewer lateral lobes. Capitula obscurely radiate, numerous, arranged in terminal and upper axillary compound corymbs; peduncles 3-5 mm, slender, linear-bracteolate, densely fulvous puberulent. Involucres narrowly cylindric, 8-9 × 1.5-2 mm, calyculate; bracts of calyculus 4 or 5, linear-subulate, 2-3 mm, puberulent; phyllaries 5, linear, ca. 8 × 1 mm, herbaceous, sparsely minutely puberulent, obscurely 3-veined, margin narrowly scarious, apically obtuse and puberulent. Ray florets 1 or 2; corolla yellow, filiform, apically truncate or with a minute lamina much shorter than style branches. Disk florets 3; corolla yellow, ca. 8 mm, with ca. 3.5 mm tube and funnelform limb; lobes ovate-triangular, ca. 1 mm, apically acute, papillose. Anthers ca. 2.2 mm, basally obtuse-auriculate or sagittate, appendages ovate-lanceolate; antheropodia rather broad, basally slightly dilated. Style branches ca. 1.8 mm. Achenes cylindric, ca. 2.5 mm, glabrous. Pappus white, 4-5 mm. Fl. May-Oct. 2n = 40.Open places in forests, forest margins, grassy slopes, streamsides; 2000-4100 m. Guizhou, Sichuan, Xizang, Yunnan [India (Sikkim), Kashmir, W Malaysia].

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