For example, in the Compositae and cruciferous plants, the stigma of single-cell papillary surface, it pectin cellulose with a layer of the wall and not for the cuticle.

• 例如在十字花科和菊科的植物，柱头的表面产生乳头状单细胞，它具果胶纤维素的壁及一层不连续的角质层。