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白紫千里光Senecio albopurpureus Kitam.

白紫千里光Senecio albopurpureus Kitam.

科名:菊科 Compositae

属名:千里光属 Senecio

《中国植物志》第77(1)卷257页
  25.白紫千里光 图版55: 1-6
  Senecio albopurpureus Kitam. in Kihara, Sc. Res. Jap. Exped. Nepal Himal. 1952-3, 1: 271. 1955; Koyama in Mem. Fac. Sc. Kyoto Univ. Ser. Biol. 2 (2): 154. 1969; Kitam. et Gould, in Hara, Enumer. Flower. Pl. Nepal 3: 41. 1982; C. Jeffrey et Y. L. Chen in Kew Bull. Taiwan Mus. 39 (2): 383. 1984. ——Senecio bracteolatus Hook. f., Fl. Brit. Ind. 3: 339. 1881, nom. illegit., non Hook. et Arn. 1841. ——Senecio tibeticus auct non. Hook. f: 西藏植物志 4: 815, 图359: 4-5. 1985.
  矮小多年生草本,根状茎短,颈部通常复被宿存叶基,具少数纤维状根。茎单生,直立,高8-20厘米,细,不分枝,被蛛丝状绒毛,或变无毛。基生叶在花期通常生存,具长柄;叶片椭圆形或倒卵状椭圆形,顶端钝,边缘具齿或稍浅裂;中部茎叶具短柄,长圆形或长圆状披针形,长3-5厘米,宽1-1.5厘米,羽状浅裂或中裂,侧裂片3-5对,长圆或卵状长圆形,具浅齿或近全缘,上面被疏蛛丝状毛,下面被密绒毛,羽状脉;叶柄基部稍扩大;上部叶较多,披针形至线状披针形,浅裂或近全缘,无柄,基部半抱茎。头状花序具舌状花,通常2-3(-4)排列成疏生伞房花序,稀单生;花序梗长达5厘米,具疏蛛丝状毛,具2-3线形或线状钻形小苞片。总苞钟状,长8-10毫米,宽7-8毫米,具外层苞片;苞片6-8(-10),线状钻形,绿色或紫色,长3-5毫米,尖,被疏蛛丝状毛;总苞片18-20,线状披针形,宽1-1.5毫米,渐尖,上端边缘黑褐色或紫色,顶端具白色柔毛,草质,绿色或紫色,背面具疏蛛丝状毛或短柔毛。舌状花10-13,管部长5毫米;舌片黄色,长圆形,长10-12毫米,宽2毫米,上端具3细齿,具4脉;管状花多数,花冠黄色,长7-8毫米,管部长3-3.5毫米,檐部漏斗状;裂片卵状披针形,长1.5毫米,尖,上端具乳头状毛。花药长2.5毫米,基部具稍尖耳;附片卵状披针形;花药颈部伸长,向基部略膨大;花柱分枝长1.5毫米,顶端截形,具乳头状毛。瘦果圆柱形,长2.5毫米,无毛。冠毛白色或至少基部禾杆色,长7毫米。花期7-8月。
  产西藏南部(吉隆)。生于溪边,海拔3900-4250米。尼泊尔,锡金也有分布。模式采自锡金。
形态特征:矮小多年生草本,根状茎短,颈部通常复被宿存叶基,具少数纤维状根。茎单生,直立,高8—20厘米,细,不分枝,被蛛丝状绒毛,或变无毛。基生叶在花期通常生存,具长柄;叶片椭圆形或倒卵状椭圆形,顶端钝,边缘具齿或稍浅裂;中部茎叶具短柄,长圆形或长圆状披针形,长3—5厘米,宽1—1.5厘米,羽状浅裂或中裂,侧裂片3--5对,长圆或卵状长圆形,具浅齿或近全缘,上面被疏蛛丝状毛,下面被密绒毛,羽状脉;叶柄基部稍扩大;上部叶较多,披针形至线状披针形,浅裂或近全缘,无柄,基部半抱茎。头状花序具舌状花,通常2—3(一4)排列成疏生伞房花序,稀单生;花序梗长达5厘米,’具疏蛛丝状毛,具2—3线形或线状钻形小苞片。总苞钟状,长8—10毫米,宽7—8毫米,具外层苞片;苞片6—8(一10),线状钻形,绿色或紫色,长3—5毫米,尖,被疏蛛丝状毛;总苞片18—20,线状披针形,宽1—1.5毫米,渐尖,上端边缘黑褐色或紫色,顶端具白色柔毛,草质,绿色或紫色,背面具疏蛛丝状毛或短柔毛。舌状花10—13,管部长5毫米;舌片黄色,长圆形,长10—12毫米,宽2毫米,上端具3细齿,具4脉;管状花多数,花冠黄色,长7—8毫米,管部长3—3.5毫米,檐部漏斗状;裂片卵状披针形,长1.5毫米,尖,上端具乳头状毛。花药长2.5毫米,基部具稍尖耳;附片卵状披针形;花药颈部伸长,向基部略膨大;花柱分枝长1.5毫米,顶端截形,具乳头状毛。瘦果圆柱形,长2.5毫米,无毛。冠毛白色或至少基部禾杆色,长7毫米。花期7—8月。
产地分布:产西藏南部(吉隆)。生于溪边,海拔3 900—4 250米。尼泊尔,锡金也有分布。 模式采自锡金。
参考文献:SenecioalbopurpureusKitam.InKihara,Sc.Res.Jap.Exped.NepalHimal.1952——3,1:271.1955;KoyarnainMere.Fac.Sc.KyotoUniv.Ser.Bi01.2(2):154.1969;Kitam.EtGould,inHara,Enumer.Flower.P1.Nepal3:41.1982;C.JeffreyetY.L.CheninKewBull.TaiwanMus.39(2):383.1984.--$eneciobracteolatusHook.F.,F1.Brit.Ind。3:339.1881,Dom.Illegit·,nonHook.EtAm.1841.——Seneciotibeticusauctnon.Hook.F:西藏植物志4:815,图359:4——5.1985.

《Flora of China》 Vol. 20-21 (2011)
26. Senecio albopurpureus Kitamura, Fauna Fl. Nepal Himalaya. 1: 271. 1955.
白紫千里光 bai zi qian li guang Senecio bracteolatus J. D. Hooker, Fl. Brit. India 3: 339. 1881, not Hooker & Arnott (1841).
Herbs, dwarf, rhizomatous. Stems erect, 8-20 cm tall, slender, simple, arachnoid-tomentose, glabrescent. Basal leaves mostly present at anthesis, long petiolate; blade elliptic or obovate-elliptic, obtusely few toothed or sublobulate; median stem leaves shorter petiolate; petiole somewhat expanded at base, not auriculate; blade oblong or oblong-lanceolate, 3-5 × 1-1.5 cm, pinnately lobed or pinnatifid with 6-10 oblong or ovate-oblong shallowly denticulate or subentire lateral lobes, abaxially densely tomentose, adaxially sparsely arachnoid, pinnately veined. Upper leaves smaller, lanceolate to linear-lanceolate, lobed or subentire, basally sessile and subamplexicaul. Capitula radiate, 2-6 in lax terminal corymb, rarely solitary; peduncles to 5 cm, sparsely arachnoid, with 2 or 3 linear or linear-subulate bracteoles. Involucres campanulate, 8-10 × 7-8 mm, calyculate; bracts of calyculus 6-8(-10), green or purplish, linear-subulate, 3-5 mm, acute, sparsely arachnoid; phyllaries 18-20, green or purplish, linear-lanceolate, 1-1.5 mm wide, dark brown or purplish on upper margin, herbaceous, sparsely arachnoid, glabrescent, apically acuminate and white pubescent. Ray florets 10-13; corolla tube ca. 5 mm; lamina yellow, oblong, 10-12 × ca. 2 mm, 4-veined, apically 3-denticulate. Disk florets many; corolla yellow, 7-8 mm, with 3-3.5 mm tube and funnelform limb; lobes ovate-lanceolate, ca. 1.5 mm, apically acute, papillose. Anthers ca. 2.5 mm, basally subacutely auriculate, appendages ovate-lanceolate; antheropodia elongate, basally somewhat dilated. Style branches ca. 1.5 mm. Achenes cylindric, ca. 2.5 mm, glabrous. Pappus white or straw-colored at least at base, ca. 7 mm. Fl. Jul-Aug.Streamsides; 3900-4300 m. S Xizang (Gyirong) [Bhutan, India (Sikkim), Nepal].

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