Botany. Belonging to the cortex or external part of some member or organ of a plant, as the bark, the rind of a fruit, etc.; spec. belonging to or…

Of or pertaining to a cuticle; of the nature of, or resembling, cuticle.

of or pertaining to the hypoderma.

Bearing stomata.

Botany. Of or belonging to the epidermis, epidermal.

Surrounding a stoma or stomata of a leaf.

Of or pertaining to the tapetum, n. 2.

Having a thick skin; of plants, fruits, etc., having a thick outer coat or peel.