Dermatogen

noun

2. In botany, the primitive or nascent epidermis; the primordial cellular layer from which the epidermis is developed.
3. Nascent epidermis, or external cuticle of plants in a forming condition.
4. Nascent epidermis, or external cuticle of plants in a forming condition.
5. Nascent epidermis, or external cuticle of plants in a forming condition.