1.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.

1.薄的或的皮层细胞的最外层。如果根的较老部分表皮细胞死亡，它常取而代之。

2.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.

2.以苯胺染料为基础配制而成的各种染料，用于和蜡着色，因此可以染皮肤（例：表皮）和组织（例：凯氏带）。