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the outer layer of cells of the apical meristem of the shoot and root. The epidermis of the shoot, the epiblem of the root, and, less often, several subepidermal tissues are differentiated from the protodermal cells.

References in periodicals archive ?
The ground meristem, located between the two protodermal surfaces, is formed of cells of varied shapes with high meristematic activity.
Both tufted and stellate hair originates from single protodermal initial.
A cotton fiber is a seed hair, a single hyperelongated cell arising from the protodermal cells of the outer integument layer of the seed coat.