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伞房厚喙菊Dubyaea cymiformis Shih

伞房厚喙菊Dubyaea cymiformis Shih

科名:菊科 Compositae

属名:厚喙菊属 Dubyaea

《中国植物志》第80(1)卷087页
  10.伞房厚喙菊 图版22: 1
  Dubyaea cymiformis Shih in Act. Phytotax. Sin. 31: 439. 1993.
  多年生草本,高45厘米。茎直立,基部直径8毫米,中下部带红紫色,自下部分枝,分枝斜升,全部茎枝有细条纹,被稠密的黑色或黑褐色多细胞长节毛。基生叶及下部茎叶大头羽状深裂,全形倒披针形或椭圆形,基部渐狭有长或短柄,长约18厘米,宽约4厘米,顶裂片宽椭圆形或倒卵形,侧裂片4-5对,半椭圆形或偏斜卵形;中部茎叶与基生叶及下部茎叶同形并等样分裂,但无柄,基部耳状半抱茎;接花序下部的叶线形或披针形,全缘或近基部有1对三角形小齿;全部叶裂片边缘全缘或有稀疏的三角形小齿或小齿退化几成小尖头状,顶端急尖或圆形,两面被稠密或稀疏的黑褐色长或短的多细胞节毛。头状花序直立,约15枚在茎枝顶端排成伞房状花序。总苞宽钟状,长1厘米,宽约2厘米,黑绿色。总苞片约3层,外层长三角状披针形,长7毫米,宽约1毫米,中内层长椭圆状披针形,长约1厘米,宽约1. 5毫米,全部总苞片顶端渐尖或急尖,外层外面沿中脉及边缘有褐色多细胞长节毛及缘毛,中层外面沿中脉有褐色多细胞长节毛,但无缘毛,内层外面无毛。舌状小花多数,红色。瘦果不成熟。冠毛白色,细锯齿状。花期7月。
  分布西藏(亚东)。海拔3 200米。模式标本采自西藏亚东。
形态特征:多年生草本,高45厘米。茎直立,基部直径8毫米,中下部带红紫色,自下部分枝,分枝斜升,全部茎枝有细条纹,被稠密的黑色或黑褐色多细胞长节毛。基生叶及下部茎叶大头羽状深裂,全形倒披针形或椭圆形,基部渐狭有长或短柄,长约18厘米,宽约4厘米,顶裂片宽椭圆形或倒卵形,侧裂片4—5对,半椭圆形或偏斜卵形;中部茎叶与基生叶及下部茎叶同形并等样分裂,但无柄,基部耳状半抱茎;接花序下部的叶线形或披针形,全缘或近基部有1对三角形小齿;全部叶裂片边缘全缘或有稀疏的三角形小齿或小齿退化几成小尖头状,顶端急尖或圆形,两面被稠密或稀疏的黑褐色长或短的多细胞节毛。头状花序直立,约15枚在茎枝顶端排成伞房状花序。总苞宽钟状,长1厘米,宽约2厘米,黑绿色。总苞片约3层,外层长三角状披针形,长7毫米,宽约1毫米,中内层长椭圆状披针形,长约1厘米,宽约1.5毫米,全部总苞片顶端渐尖或急尖,外层外面沿中脉及边缘有褐色多细胞长节毛及缘毛,中层外面沿中脉有褐色多细胞长节毛,但无缘毛,内层外面无毛。舌状小花多数,红色。瘦果不成熟。冠毛白色,细锯齿状。花期7月。
产地分布:分布西藏(亚东)。海拔3 200米。模式标本采自西藏亚东。
参考文献:Dubyaea cymiformis Shih in Act.Phytotax.Sin.31;439.1993.

《Flora of China》 Vol. 20-21 (2011)
Dubyaea cymiformis  C. Shih Acta Phytotax. Sin. 31: 439. 1993.
伞房厚喙菊   san fang hou hui ju
Herbs to 45 cm tall, perennial. Stem erect, basally and middle tinged with purplish red, branched from basal portion, leafy; branches ascending, densely covered with dark brown to blackish long stiff glandular hairs. Basal and lower stem leaves oblanceolate to elliptic, ca. 18 × 4 cm, lyrately pinnatipartite, basally attenuate, margin mucronulately dentate; lateral lobes 4 or 5 pairs, elliptic to obliquely ovate; terminal lobe broadly elliptic to oblanceolate. Middle stem leaves similar to lower stem leaves but base ± auriculately clasping; uppermost stem leaves linear to lanceolate, undivided or almost so, apex acute to rounded. Synflorescence corymbiform, with ca. 15 capitula. Capitula erect, with numerous florets. Involucre broadly campanulate, ca. 1 × 2 cm. Phyllaries dark green, apex acute to acuminate; outer phyllaries rather few, narrowly lanceolate, with long brown stiff glandular hairs and weak curly pale uniseriate hairs on midvein and along margin; inner phyllaries except innermost ones with long, brown stiff glandular hairs along midvein. Florets purplish. Achene not seen when mature. Pappus ?whitish, ca. 1 cm. Fl. Jul.
● Mountain slopes; ca. 3200 m. S Xizang (Yadong).
Known only from the type, this species is probably related to Dubyaea oligocephala (Schultz Bipontinus) Stebbins from the W Himalaya and D. hispida.Known only from the type, this species is probably related to Dubyaea oligocephala (Schultz Bipontinus) Stebbins from the W Himalaya and D. hispida.

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