简述了河南木兰属玉兰亚属树种资源及树种形变的特异性，探讨了该亚属的分组依据及标准，提出了合并望春玉兰组和木兰组为木兰组及成立朱砂玉兰组的依据，该依据得到了酶学和数量分类学的证实． In this paper, the species and genus of Magnolia genus Magnoliaceae in Henan were briefly described. The basis and criteria of genus grouping were discussed. The basis for combining Magnolia group of Magnoliaceae group with Magnolia group and Magnolia group was established. The basis was confirmed by enzymology and quantitative taxonomy.