Polyarch condition is seen in
Monocot stem
Monocot root
Dicot root
Dicot stem
They provide mechanical support to the growing parts of the plant such as young stem and petiole of leaf.
Write a note on Augmentative tissue.
Sclerenchyma fibres are
Both from phyllogenetic and ontogenetic point of view, which tissue is regarded as most primitive
Collenchyma is