Question

Phellogen is what is answer​

Answer 1

Phellogen is defined as the meristematic cell layer responsible for the development of the periderm. Cells that grow inwards from there are termed phelloderm, and cells that develop outwards are termed phellem or cork (note similarity with vascular cambium)

Answer 2

Answer:

Phellogen is a secondary meristem that initiates phellem or phelloderm in the periderm of a stem or root ,called also cork cambium.