areas where the rapid new growth originates.
Apical:- root point(cap) and stem apex elongation.
these give rise to!(down arrow)
Primary Meristems.:- these cells undergo division before differentiation.(pro-cambium(forms the vascular cambium and it’s side tissues))(, ground cambium(makes pith and cortex filler cells))(, protoderm(makes the epidermis for the plant as well as leaf primordium; found also on top of apical meristem))
So, primary growth forms primary tissues forms primary plant body.”don’tchaknow”
Lateral:- increases girth of roots and stems and is what we call secondary growth. (vascular cambium)(cork cambium grows newer filler cells and inner dermis)(intercalary cambium grows nodes on plants)