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心叶合耳菊Synotis cordifolia Y. L. Chen

心叶合耳菊Synotis cordifolia Y. L. Chen

科名:菊科 Compositae

属名:合耳菊属 Synotis

《中国植物志》第77(1)卷202页
  28.心叶合耳菊 图版44: 6-10
  Synotis cordifolia Y. L. Chen in Acta Phytotax. Sin. 33 (1): 79, fig. 3. 1995.
  多年生草本;根状茎未见。茎直立,高40-70厘米,具明显条纹,不分枝,弯曲,被灰白色柔毛或后近无毛。叶具长柄;叶片卵状心形或心形,近革质,长9-13厘米,宽6-10厘米,顶端渐尖或急尖,基部心形,边缘有不规则粗齿;齿宽三角形,具小尖头或近波状;掌状5条脉,主脉在下面明显凸起,上面绿色,无毛,下面沿脉被黄色短毛;叶柄长4-8.5厘米,基部略扩大,被疏短毛。头状花序盘状,多数,在茎端和上部叶腋排列成塔形圆锥花序或伞房状圆锥花序;花序梗长3-6毫米,被密褐色短柔毛。总苞圆柱形,宽1.5-2毫米,总苞片3,近革质,长圆形,宽1.5-2毫米,顶端钝或稍具2细齿,边缘宽干膜质,背面无毛,具3-6条不明显细脉。小花3,全部管状,明显长于花盘;花冠黄色,长5-6毫米,管部长2.5-3毫米,檐部漏斗状;裂片长圆状披针形,顶端尖,有乳头状毛。花药线形,长2-3毫米,基部有长尾;花药颈部粗,基部略扩大;花柱分枝外弯,顶端钝,被乳头状微毛。瘦果圆柱形,长3-4毫米,无毛,具肋;冠毛变红色,长5-6毫米。花果期10月。
  产云南东川。生于海拔3000米的混交林中。
形态特征:多年生草本;,根状茎未见。茎直立,高40—70厘米,具明显条纹,不分枝,弯曲,被灰白色柔毛或后近无毛。叶具长柄;叶片卵状心形或心形,近革质,长9—13厘米,宽6—10厘米,顶端渐尖或急尖,基部心形,边缘有不规则粗齿;齿宽三角形,具小尖头或近波状;掌状5条脉,主脉在下面明显凸起,上面绿色,无毛,下面沿脉被黄色短毛;叶柄长4--8.5厘米,基部略扩大,被疏短毛。头状花序盘状,多数,在茎端和上部叶腋排列成塔形圆锥花序或伞房状圆锥花序;花序梗长3—6毫米,被密褐色短柔毛。总苞圆柱形,宽1.5—2毫米,总苞片3,近革质,长圆形,宽1.5--2毫米,顶端钝或稍具2细齿,边缘宽干膜质,背面无毛,具3—6条不明显细脉。小花3,全部管状,明显长于花盘;花冠黄色,长5—6毫米,管部长2.5--3毫米,檐部漏斗状;裂片长圆状披针形,顶端尖,有乳头状毛。花药线形,长2—3毫米,基部有长尾;花药颈部粗,基部略扩大;花柱分枝外弯,顶端钝,被乳头状微毛。瘦果圆柱形,长3--4毫米,无毛,具肋;冠毛变红色,长5—6毫米。花果期10月。
产地分布:产云南东川。生于海拔3 000米的混交林中。
参考文献:Synotis cordifolia Y.L.CheninActaPhytotax.Sin.33(1):79,fig.3.1995.

《Flora of China》 Vol. 20-21 (2011)
28. Synotis cordifolia Y. L. Chen, Acta Phytotax. Sin. 33: 79. 1995.
心叶合耳菊 xin ye he er ju
Herbs, rhizomatous. Rhizomes not seen. Stems erect, 40-70 cm, striate, flexuous, simple, gray-white pubescent or subglabrous. Leaves long petiolate; petiole 4-8.5 cm, sparsely puberulent, basally slightly expanded; blade adaxially green, ovate-cordate or cordate, 9-13 × 6-10 cm, subleathery, palmately 5-veined, abaxially fulvous setulose on veins, adaxially glabrous, margin irregularly coarsely dentate, with mucronate broadly triangular teeth or subrepand-dentate, apically acuminate or acute. Capitula discoid, numerous, arranged in terminal and axillary in upper part pyramidal thyrses or corymbose panicles; peduncles 3-6 mm, densely fulvous pubescent. Involucres cylindric, 1.5-2 mm wide; phyllaries 3, subleathery, oblong, 1.5-2 mm wide, glabrous, sometimes slightly 3-6-veined, apically obtuse. Ray florets absent. Disk florets 3; corolla yellow, 5-6 mm, with 2.5-3 mm tube and funnelform limb; lobes oblong-lanceolate, apically acute, fringed with papillae. Anthers linear, 2-3 mm, basally caudate; antheropodia stout, basally slightly expanded. Style branches excurved, apically obtuse, papillose. Achenes 3-4 mm, glabrous, ribbed. Pappus rubescent, 5-6 mm. Fl. and fr. Oct.● Mixed forests; ca. 3000 m. Yunnan (Dongchuan).

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