The evolutional trends of the types of anticlinal walls of epidermal cells and epidermal hairs were discussed . 3 . pollen morphology pollen morphology of species from machilus in zhejiang was observed using sem 表皮细胞垂周壁的演化途径：平直一浅波状一深波状：毛被的演化趋势是：无毛一单毛。
