The leaf epidermal micromorphology and anatomical structures of ten species in the genus Styrax from Hunan province in China were examined and statistically analyzed under light microscopy and scanning electron microscopy (SEM). The results were as follows: (1)The epidermis was composed of a single layer of cells which are polygonal or irregular in shape and their anticlinal walls are straight, arched, or sinuous; (2)The size and density of stomata apparatus between species are significantly different; (3)The inner margin of the outer ...