The micro sc opic characters of the plants under study were found to vary greatly between spe cies, but were generally similar among the same species.

• 结果：这些植物叶的上下表皮细胞的形状、大小，栅表比，气孔的类型、分布、气孔指数，叶肉组织中草酸钙结晶体的形状、大小、分布以及针晶囊细胞的形状特征有较明显的种间区别，且较稳定。