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木里合耳菊Synotis muliensis Y. L. Chen

木里合耳菊Synotis muliensis Y. L. Chen

别名:木里尾药菊;

科名:菊科 Compositae

属名:合耳菊属 Synotis

《中国植物志》第77(1)卷203页
  30.木里合耳菊 木里尾药菊 图版43: 4-7
  Synotis muliensis Y. L. Chen in Acta Phytotax. Sin. 26 (1): 54. tal. 1. fig. 1. 1988; 横断山区维管植物下册: 2093. 1994.
  多年生草本;根状茎未见。茎直立,高20厘米,上部有分枝,被贴生短柔毛或近无毛。叶具柄;叶片纸质,三角状卵形,或卵状披针形,长8-10厘米,宽5-7.5厘米,具3-5条掌状脉,基部心形或宽楔形,顶生裂片大,三角状卵形至披针形,顶端渐尖或长渐尖,边缘有不规则三角形齿;侧生裂片卵状三角形或卵状长画形,急尖,全缘或具2-3齿,上面绿色,被疏褐色短毛,下面被疏短柔毛;叶柄长3-4厘米,被褐色短毛,基部扩大;上部叶较小,三角状披针形至披针形,具3裂;裂片具小齿或全缘;叶柄短。头状花序盘状,多数,在茎端和上部叶腋排列成塔状圆锥花序,有总花梗或近无梗;花序梗被密棉毛,具2-3个三角形小苞片。总苞圆柱形,长6-7毫米,宽2-3毫米,具2-3枚钻形外苞片;总苞片5,近革质,长圆形,宽1-1.5毫米,顶端钝或圆形,被微毛,边缘干膜质,背面无毛。小花全部管状,5,明显长于花盘,黄色,长6-7毫米;管部长3-3.5毫米,檐部漏斗形;裂片5,长圆状披针形,顶端被微毛。花药线形,长3-3.5毫米,基部具长尾;花丝颈部粗,基部稍扩大;花柱分枝顶端钝,被乳头状微毛,瘦果圆柱形,长约3毫米,被疏微毛;冠毛白色,长约6毫米。花果期8月。
  产四川木里。生于海拔2450-2700米的草坡、林缘岩石处。
形态特征:多年生草本;根状茎未见。茎直立,高20厘米,上部有分枝,被贴生短柔毛或近无毛。叶具柄;叶片纸质,三角状卵形,或卵状披针形,长8—10厘米,宽5--7.5厘米,具3—5条掌状脉,基部心形或宽楔形,顶生裂片大,三角状卵形至披针形,顶端渐尖或长渐尖,边缘有不规则三角形齿;侧生裂片卵状三角形或卵状长圆形,急尖,全缘或具2—3齿,上面绿色,被疏褐色短毛,下面被疏短柔毛;叶柄长3—4厘米,被褐色短毛,基部扩大;上部叶较小,三角状披针形至披针形,具3裂;裂片具小齿或全缘;叶柄短。头状花序盘状,多数,在茎端和上部叶腋排列成塔状圆锥花序,有总花梗或近无梗;花序梗被密棉毛,具2—3个三角形小苞片。总苞圆柱形,长6--7毫米,宽2—3毫米,具2--3枚钻形外苞片;总苞片5,近革质,长圆形,宽1—1.5毫米,顶端钝或圆形,被微毛,边缘干膜质,背面无毛。小花全部管状,5,明显长于花盘,黄色,长6---7毫米;管部长3—3.5毫米,檐部漏斗形;裂片5,长圆状披针形,顶端被微毛。花药线形,长3—3.5毫米,基部具长尾;花丝颈部粗,基部稍扩大;花柱分枝顶端钝,被乳头状微毛,瘦果圆柱形,长约3毫米,被疏微毛;冠毛白色,长约6毫米。花果期8月。
产地分布:产四川木里。生于海拔2 450—2 700米的草坡、林缘岩石处。
参考文献:Synotis muliensis Y.L.CheninActaPhytotax.Sin.26(1):54.Tal.1.Fig.1. 1988;横断山区维管植物下册:2093.1994.

《Flora of China》 Vol. 20-21 (2011)
30. Synotis muliensis Y. L. Chen, Acta Phytotax. Sin. 26: 54. 1988.
木里合耳菊 mu li he er ju
Herbs, rhizomatous. Rhizomes not seen. Stems erect, ca. 20 cm tall, branching in upper part, adpressed shortly pubescent or subglabrous. Leaf petiole 3-4 cm, fulvous puberulent, basally expanded; blade adaxially green, triangular-ovate or ovate-lanceolate, 8-10 × 5-7.5 cm, papery, abaxially sparsely shortly pubescent, adaxially sparsely fulvous setulose, palmately 3-5-veined, base broadly cuneate or cordate, terminal lobe large, triangular to lanceolate, margin irregularly triangular-dentate, apex acuminate or long acuminate; lateral lobes ovate-triangular or ovate-oblong, margin entire or 2- or 3-denticulate, apex acute. Upper leaves smaller, shortly petiolate, triangular-lanceolate to lanceolate, 3-lobed; lobes denticulate or entire. Capitula discoid, numerous, in terminal and upper axillary pyramidal thyrses, pedunculate or subsessile; peduncles densely lanate, with 2 or 3 triangular bracteoles. Involucres cylindric, 6-7 × 2-3 mm, calyculate; bracts of calyculus 2 or 3, subulate; phyllaries 5, glabrous, margin scarious, apically puberulent. Ray florets absent. Disk florets 5, conspicuously exceeding phyllaries, corolla yellow, 6-7 mm, with 3-3.5 mm tube and funnelform limb; lobes oblong-lanceolate, apically puberulent. Anthers linear, 3-3.5 mm, anther tails long; antheropodia slightly dilated at base. Style branches obtuse, fringed with papillae. Achenes ca. 3 mm, sparsely puberulent. Pappus white, ca. 6 mm. Fl. and fr. Aug.● Forest margins, rocky places; 2400-2700 m. Sichuan (Muli).

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