Question

what is epidermis and epiblema??

Answer 1

Epiblema imperfectly formed epidermis which supplies the place of the true epidermis in submerged plants and on the extremities of growing roots. It is the outermost layer of cells with large number of unicellular root hairs. The epidermis is the outermost layer of cells that covers the whole plant.

Answer 2

Epidermis is the outermost layer of cells which covers the whole plant.
Epiblema is imperfectly formed epidermis which behaves as epidermis in lower plants.