Abstract: The studies on epidermal features of leaves in 16 species belong to Cochlearia, Yinshania, Hilliella, Cochleariella were conducted with scanning electron microscopy. The epidermal cells are anomo- shaped, and the stomata are mostly focussed in the low epidermis. Their anticlinal wall have clearly sinuous ridges or sink in and form groove, and the periclinal walls have various ornamentations of cuticles. These micromorphological characteristics are different among the genera and there are crossing ones between Yinshama and Hilliella. This paper will provide some proof for dividing this four genera.

Key words: Cruciferae