Stomatal band comprises -8 lines of stomata on each side of the midvein on the abaxial surfaces of the leaves.叶片远轴面气孔分布于中脉两侧,每侧各有-8列气孔。
The origin of the midvein calli developed mainly from the vascular cylinder, the palisade tissues and the phloem parench主脉的愈伤组织主要由维管束鞘薄壁细胞,以及与其邻接的一些栅栏组织细胞和韧皮部的薄壁细胞分裂而来。