Permanent tissues are those tissues, the cells of which have lost the capacity to divide and have attained a permanent shape, size and function due to morphological, biochemical and physiological differentiation. On the basis of composition, permanent tissues can be simple such as parenchyma, collenchyma, sclerenchyma or complex such as xylem and phloem. These are found in evry part of plant like leaves, roots, stem etc
A meristematic tissue is a simple tissue composed of a group of similar and immature cells which can divide and form new cells. Meristematic tissues are present in growing parts of plant like shoot apex, root apex, bases of leaves.