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作 者 ：刘建全 杨惠玲

期 刊 ：西北植物学报 2001年 5期 页码：T001~T002

关键词：掌裂橐吾；胚胎学；菊科；千里光族；

Keywords:Ligularia przewalskii, embryology,

摘 要 ：首次报道了掌裂橐吾的胚胎发育过程。药壁发育双子叶型；绒毡层发育属、The Cosmos bipinnatus”型，成熟花粉为3细胞型；单珠被，薄珠心，倒生胚珠；具发达的珠被绒毡层；胚囊发育为4孢子型，类似德鲁撒型（Drusa);胚乳发育为核型，胚胎发育为紫菀型千里光变型。

Abstract:Investigated in this paper is the embryology of Ligularia prz ewalskii.The anther is tetraporangiate and its wall development conforms to the dicotyledonous type.The tapetum is similar to "The Cosmos bipinnatus" type.Cytokinesis is of the simultaneous typ

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