本文研究了分布在我国的山楂属8种3变种的花粉形态,每种都进行了光学显微镜和扫描电镜的观察和照相;试图在此基础上对山楂分类提供一些参考资科。 In this paper, we studied the pollen morphology of 8 species and 3 varieties of Crataegi distributed in our country. Each species was observed and photographed by light microscope and scanning electron microscope. At the same time, some references were provided for the classification of hawthorn.