Abstract : the pollen morphology of 5 species of corydalis from northeast china was observed and compared by sem . the results declared the shape and size of the pollen and exine sculpture of the 5 species were basically stable and could serve as a taxonomic character 文摘:用扫描电镜对东北延胡索极其近缘植物的花粉形态进行了观察，结果发现花粉粒在形状、大小、外壁纹饰、沟的长短及宽度等方面均有区别，从中获得了东北延胡索及其近缘植物分类方面的孢粉学依据.因此花粉的特征可用于区别延胡索类植物
