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合耳菊Synotis wallichii (DC.) C. Jeffrey et Y. L. Chen

合耳菊Synotis wallichii (DC.) C. Jeffrey et Y. L. Chen

科名:菊科 Compositae

属名:合耳菊属 Synotis

《中国植物志》第77(1)卷182页
  12.合耳菊 图版38: 1-5
  Synotis wallichii (DC.) C. Jeffrey et Y. L. Chen in Kew Bull. 39(2): 305. 1984. ——Senecio wallichii DC. Prodr. 6: 364. 1838; C. B. Clarke, Comp. Ind. 184. 1876; Hook. f. Fl. Brit. Ind. 3: 352. 1881; Kitam. in Hara, Fl. East. Himal. 344. 1966; Koyarna in Mem. Fac. Sci. Kyoto Univ. ser. Biol. 2(2): 147. 1969.
  近无茎多年生草本,根状茎粗短,木质,具少数被柔毛的纤维状根。营养茎单生,直立或斜升,或多或多近地下,长0.5-20厘米,除上端外无叶。花茎1-4,葶状,直立,纤细,被疏蛛丝状毛,或多少变无毛,高达40厘米。叶密集于花茎基部,近莲座状,具长柄;叶片宽卵形,或卵形,长3.5-13厘米,宽2.5-11厘米,顶端宽短渐尖,基部心形,边缘具疏生不明显至粗波状齿,齿端具小尖,上面被贴生疏短硬毛,下面特别沿脉被疏柔毛至无毛,膜质;羽状脉,侧脉4对,弧状上弯;叶柄细,无翅,长3.5-8厘米,被密至疏黄褐色柔毛,基部稍扩大。头状花序具异形小花,盘状或具细舌状花,数个至多数,排成较密的聚伞圆锥状复伞房花序;花序梗短,长2-5毫米,被柔毛,基部具苞片,中部具1-2个线形小苞片。总苞圆柱形,长6-8毫米,宽1.5毫米,具外层苞片;苞片数个,短;总苞片5,长圆形,宽约1毫米,顶端钝至尖,被短柔毛,草质,具狭干膜质边缘,外面无毛,稀被疏蛛丝状毛。边缘小花2,花冠长7-7.5毫米,丝状,具5细齿或具不明显的小舌片;管状花3,花冠黄色,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;花药线状长圆形,长3毫米;花药尾部稍长于颈部;附片长圆状卵形;颈部稍短宽,向基部略膨大。花柱分枝长1.5毫米,顶端钝,边缘具长乳头状毛,中央具等长的毛。瘦果圆柱形,长2.2毫米,无毛;冠毛白色,长7毫米。花期9月。
  产西藏南部(亚东)。生于混交林中,海拔2700米。尼泊尔、锡金及不丹也有。模式采自西藏。
  本种叶通常无翅,稀具不明显狭翅;总苞片外面无毛,与下面的种相区别。可能与后者相杂交现象。
形态特征:近无茎多年生草本,根状茎粗短,木质,具少数被柔毛的纤维状根。营养茎单生,直立或斜升,或多或多近地下,长0.5---20厘米,除上端外无叶。花茎1--4,葶状,直立,纤细,被疏蛛丝状毛,或多少变无毛,高达40厘米。叶密集于花茎基部,近莲座状,具长柄;叶片宽卵形,或卵形,长3.5—13厘米,宽2.5—11厘米,顶端宽短渐尖,基部心形,边缘具疏生不明显至粗波状齿,齿端具小尖,上面被贴生疏短硬毛,下面特别沿脉被疏柔毛至无毛,膜质;羽状脉,侧脉4对,弧状上弯;叶柄细,无翅,长3.5—8厘米,被密至疏黄褐色柔毛,基部稍扩大。头状花序具异形小花,盘状或具细舌状花,数个至多数,排成较密的聚伞圆锥状复伞房花序;花序梗短,长2--5毫米,被柔毛,基部具苞片,中部具1—2个线形小苞片。总苞圆柱形,长6—8毫米,宽1.5毫米,具外层苞片;苞片数个,短;总苞片5,长圆形,宽约1毫米,顶端钝至尖,被短柔毛,草质,具狭干膜质边缘,外面无毛,稀被疏蛛丝状毛。边缘小花2,花冠长7--7.5毫米,丝状,具5细齿或具不明显的小舌片;管状花3,花冠黄色,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;花药线状长圆形,长3毫米;花药尾部稍长于颈部;附片长圆状卵形;颈部稍短宽,向基部略膨大。花柱分枝长1.5毫米,顶端钝,边缘具长乳头状毛,中央具等长的毛。瘦果圆柱形,长2.2毫米,无毛;冠毛白色,长7毫米。花期9月。
产地分布:产西藏南部(亚东)。生于混交林中,海拔2700米。尼泊尔、锡金及不丹也有。模式采自西藏。
本种提示:本种叶通常无翅,稀具不明显狭翅;总苞片外面无毛,与下面的种相区别。可能与后者相杂交现象。
参考文献:Synotis wallichii(DC.)C。Jeffrey et Y.L.Chen in Kew Bull.39(2):305. 1984.--Seneciomallichii DC.Prodr.6:364.1838;C.B.Clarke,Comp. Ind. 184.1876;Hook.F.F1.Brit.Ind.3:352.1881;Kitam,in Hara,n.East.1n— mal.344.1966;Koyama in Mere.Fac.Sci.Kyoto Univ.Ser.Bi01.2(2):147. 1969.

《Flora of China》 Vol. 20-21 (2011)
12. Synotis wallichii (Candolle) C. Jeffrey & Y. L. Chen, Kew Bull. 39: 305. 1984.
合耳菊 he er ju Senecio wallichii Candolle, Prodr. 6: 364. 1838.
Herbs, subacaulescent, rhizomatous. Rhizome short, thick, woody. Vegetative stem erect or ascending, ± subterranean, 0.5-20 cm, leafless except at apex. Flowering stems 1-4, erect, scapiform, to 40 cm tall, slender, thinly arachnoid, glabrescent. Leaves subrosulate at base of flowering stems, long petiolate; petiole 3.5-8 cm, slender, not winged, densely to sparsely fulvous pubescent; blade broadly ovate or ovate, 3.5-13 × 2.5-11 cm, membranous, abaxially sparsely pubescent especially on veins to glabrous, adaxially sparsely scattered setulose, pinnately veined, lateral veins 8, arcuate-ascending, margin remotely, obscurely to coarsely sinuate-dentate with mucronulate teeth, apex shortly rather broadly acuminate. Capitula heterogamous, disciform or minutely radiate, few to numerous, arranged in rather dense compound thyrsoid corymbs; peduncles short, 2-5 mm, pubescent, 1- or 2-bracteolate; bracts 3-6, linear. Involucres cylindric, 6-8 × ca. 1.5 mm, calyculate; bracts of calyculus few, short; phyllaries 5, oblong, ca. 1 mm wide, herbaceous, glabrous, sparsely arachnoid, or rarely sparsely to densely setulose, margin narrowly scarious, apex obtuse to acute and puberulent. Female florets 2; corolla tube 7-7.5 mm, filiform and 5-denticulate or with minute inconspicuous apically 2-denticulate lamina. Bisexual florets 3; corolla yellow, ca. 8 mm, with ca. 3.5 mm tube and funnelform limb; lobes ovate-triangular, ca. 1 mm, apically acute. Anthers ca. 3 mm; anther tails just exceeding antheropodia; appendages oblong-ovate; antheropodia rather short and broad, basally slightly dilated. Style branches ca. 1.5 mm, fringed with long papillae; terminal tuft not clearly differentiated. Achenes ca. 2.2 mm, glabrous. Pappus white, ca. 7 mm. Fl. Sep.Mixed forests; ca. 2700 m. Xizang (Yadong) [Bhutan, India (Sikkim), Nepal].

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