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耳柄合耳菊Synotis otophylla Y. L. Chen

耳柄合耳菊Synotis otophylla Y. L. Chen

科名:菊科 Compositae

属名:合耳菊属 Synotis

《中国植物志》第77(1)卷199页
  26.耳柄合耳菊 图版44: 1-5
  Synotis otophylla Y. L. Chen in Acta Phytotax. Sin. 33(1): 81, fig. 4. 1995.
  多年生草本;根状茎木质,斜升,具多数须根。茎直立,高60-65厘米,上部分枝,基部直径3-4毫米,圆柱形,具条纹,变紫色,被细短毛。叶有长叶柄,基部叶在花期枯萎;叶片纸质,下部叶三角状卵形或三角状戟形,长8-10厘米,宽8-9厘米,顶端尖或渐尖,基部深心形或近戟形,边缘有不规则的齿,齿端具小尖,掌状5条脉,上面绿色,下面淡紫色,两面被贴生褐色短柔毛;叶柄长4-5厘米,被疏生短柔毛,基部叶状扩大,耳状抱茎,边缘有具小尖的细齿;上部叶较小;叶片卵形或宽卵形,长4-5厘米,宽4-4.5厘米,顶端尖或稍尖,基部微心形或截形,边缘具不规则的齿,具小尖头,两面被褐色短柔毛;叶柄长1.5-3.5厘米,被褐色短毛,基部叶状扩大,耳状抱茎;最上部叶极小,披针形或线形,长1-1.5厘米,全缘或具2-3小齿,具短柄或近无柄。头状花序盘状,多数,在茎端排列成伞房圆锥状;花序梗长1-2毫米,被密短柔毛,有1-2鳞片状苞片。总苞圆柱形,长宽1.5-2毫米,基部具1-3钻形小苞片;总苞片5,近革质,长圆形,宽1-1.5毫米,紫色,顶端钝,边缘窄干膜质,背面被疏短毛或近无毛,具1-3条不明显的细脉。小花5,全部管状,明显超出花盘;花冠黄紫色,长5毫米,管部长2-2.5毫米,檐部窄钟状;裂片卵状披针形,顶端尖,被微毛。花药线形,长3毫米,基部具长尾,花药颈部粗,基部略扩大;花柱分枝顶端钝,被乳头状微毛。瘦果圆柱形,长2.5毫米,无毛;冠毛紫褐色。花期9月。
  产西藏(吉隆)。生于冷杉林下,海拔3300米。
形态特征:多年生草本;根状茎木质,斜升,具多数须根。茎直立,高60—65厘米,上部分枝,基部直径3—4毫米,圆柱形,具条纹,变紫色,被细短毛。叶有长叶柄,基部叶在花期枯萎;叶片纸质,下部叶三角状卵形或三角状戟形,长8—10厘米,宽8—9厘米,顶端尖或渐尖,基部深心形或近戟形,边缘有不规则的齿,齿端具小尖,掌状5条脉,上面绿色,下面淡紫色,两面被贴生褐色短柔毛;叶柄长4—5厘米,被疏生短柔毛,基部叶状扩大,耳状抱茎,边缘有具小尖的细齿;上部叶较小;叶片卵形或宽卵形,长4—5厘米,宽4—4.5厘米,顶端尖或稍尖,基部微心形或截形,边缘具不规则的齿,具小尖头,两面被褐色短柔毛;叶柄长1.5—3.5厘米,被褐色短毛,基部叶状扩大,耳状抱茎;最上部叶极小,披针形或线形,长1—1,5厘米,全缘或具2—3小齿,具短柄或近无柄。头状花序盘状,多数,在茎端排列成伞房圆锥状;花序梗长1—2毫米,被密短柔毛,有1--2鳞片状苞片。总苞圆柱形,长宽1.5—2毫米,基部具1—3钻形小苞片;总苞片5,近革质,长圆形,宽1—1.5毫米,,紫色,顶端钝,边缘窄干膜质,背面被疏短毛或近无毛,具1—3条不明显的细脉。小花5,全部管状,明显超出花盘;花冠黄紫色,长5毫米,管部长2--2.5毫米,檐部窄钟状;裂片卵状披针形,顶端尖,被微毛。花药线形,长3毫米,基部具长尾,花药颈部粗,基部略扩大;花柱分枝顶端钝,被乳头状微毛。瘦果圆柱形,长2.5毫米,无毛;冠毛紫褐色。花期9月。
产地分布:产西藏(吉隆)。生于冷杉林下,海拔3 300米。
参考文献:Synotisot ophyllaY.L.ChenlnActaPhytotax.Sin.33(1):81,fig.4.1995.

《Flora of China》 Vol. 20-21 (2011)
26. Synotis otophylla Y. L. Chen, Acta Phytotax. Sin. 33: 81. 1995.
耳柄合耳菊 er bing he er ju
Herbs, rhizomatous. Rhizome woody, ascending. Stems erect, striate, purplish, 60-65 cm tall, branching in upper part, 3-4 mm in diam. at base, minutely setulose. Leaves long petiolate, basal leaves withered at anthesis; blade papery, lower leaf petiole 4-5 cm, sparsely puberulent, basally leaflike-expanded, auriculate-amplexicaul, with mucronulate teeth margins; blade abaxially purplish, adaxially green, triangular-ovate or triangular-hastate, 8-10 × 8-9 cm, palmately 5-veined, both surfaces adpressed fulvous pubescent, base deeply cordate or subhastate, margin irregularly dentate, with mucronulate teeth, apex acute or acuminate. Upper leaf petiole 1.5-3.5 cm, fulvous puberulent, basally leaflike-expanded auriculate, amplexicaul; blade smaller, ovate or broadly ovate, 4-5 × 4-4.5 cm, both surfaces fulvous setulose, base subcordate or truncate, margin irregularly dentate with mucronulate teeth, apex acute or acute-acuminate. Uppermost leaves shortly petiolate or subsessile, lanceolate or linear, very small, 1-1.5 cm, margin entire or 2- or 3-denticulate. Capitula discoid, numerous, arranged in terminal corymbose thyrses; peduncles 1-2 mm, densely pubescent, with 1 or 2 scalelike bracts. Involucres cylindric, 1.5-2 × 1.5-2 mm, with 1-3 subulate bracteoles at base; phyllaries 5, oblong, 1-1.5 mm wide, subleathery, sparsely puberulent or subglabrous, obscurely 1-3-veined, margin narrowly scarious, apically obtuse, purplish. Disk florets 5, distinctly exserted beyond phyllaries; corolla yellow-purplish, ca. 5 mm, with 2-2.5 mm tube and narrowly campanulate limb; lobes ovate-lanceolate, apically acute, papillose. Anthers linear, ca. 3 mm; anther tails long; antheropodium stout, basally slightly dilated. Style branches obtuse, fringed with rather short fine papillae. Achenes ca. 2.5 mm, glabrous. Pappus purplish brown. Fl. Sep.● Picea forests; ca. 3300 m. S Xizang (Gyirong).

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