Exodermis An outermost layer of thickened or suberized cortical cells that sometimes replaces the epidermal layer in the older parts of roots if the epidermal cells have died.

薄或木栓化细胞最外。如果根较老部分表细胞死亡，它常取而代之。

Sudan stains Any of various stains based on aniline dyes, and used to color fats and waxes, and hence cutinized (e.g. cuticle ) and suberized (e.g.Casparian strip) tissues.See staining.

以苯胺染为基础配制而成各种染，使脂肪和蜡着色，因此可以染肤（例：表）和栓化组织（例：凯氏带）。