The ultra-structure of the cuticle and distribution of the mineral elements in the cuticle of the leaf and leaf sheath of the rice straw were studied by means of SEM-EDXA.

• 叶片有发达的叶脉系统;中脉中存在巨大的空腔;中脉的外周交替分布着中型和小型维管束;中脉内部细胞的结点上也存在着维管束。