Question

What is cortex,protoderm,leaf primordium?

Answer 1

Cortex is the outer layer of tissue which lies immediately below the epidermis in both stems and roots. It is also called ground tisuue.
Protoderm also called as dermatogen is the thin layer of meristmatic tissue in the embryo which gives rise to the epidermis.
Leaf primordium is the lateral outgrowth of the apical meristm which develops into a leaf