中国伞形科植物在线

致力于伞形科分类学研究的网络化和分类学知识的传播和利用!

小芹属分种检索表

小芹属分种检索表
1.果实卵形,萼齿细小呈钻状或不明显,胚乳腹面平直。
  2.花瓣全缘不分裂。
    3.植株高5—45厘米,伞辐4—12,小伞形花序有花10—20。
      4.叶无毛;无小总苞片。
        5.基生叶的末回裂片披针形或线形,长5—15毫米,宽1—2毫米(钝瓣小芹  S. cruciatum (Franch.) Wolff)。
          6.基生叶2—3回羽状分裂,末回裂片线状披针形,长3—5毫米,宽约1毫米,花瓣顶端钝圆;不内折··············3a.钝瓣小芹(原变种)  S. cruciatum (Fraach.) Wolff var. cruciatum
          6.基生叶1—2回羽状分裂,末回裂片线形,长5—15毫米,宽1—2毫米,花瓣顶端小舌片内折···········3b.尖瓣小芹  S. cruciatum (Franch.) Wolff var. linearilobum (Franch.) Shan. er Pu
        5.基生叶的末回裂片线形伸长,长10—30毫米,宽0.5—2毫米··········································4.阔鞘小芹  S. vaginatum Wolff
      4.叶背面及叶轴上有白色柔毛,末回裂片长卵形;总苞片和小总苞片线状披针形·······································5.蕨叶小芹  S. filicinum Wolff
    3.植株高3—5厘米,伞辐仅2—3,小伞形花序有花3—10·············································6.少辐小芹  S. pauciradiatum Shan et Pu
  2.花瓣浅裂至深裂。
    7.茎通常带紫色,叶片披针形或卵状披针形,花瓣全缘或2—3浅裂··············································1.紫茎小芹  S. colortum (Diels) Wolff
    7.茎不带紫色,叶片三角形,花瓣3—4裂至中下部···················································2.裂瓣小芹  S. achizopetalum (Franch.) Wolff
1.果实阔卵形,萼齿明显,呈三角形,胚乳腹面微凹,基生叶3回羽状分裂·····································7.长柄小芹  S. dolichopodum (Diels) Wolff

周日, 2014-08-31 16:22 -- admin
http://www.gravatar.com/avatar/7e71ae62cd16441203203930186e887a.jpg?d=http%3A//apiaceae.onlineflora.cn/sites/all/modules/contrib/gravatar/avatar.png&s=100&r=G
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith