Xylem is made up of ____________

 Parenchyma cells with thickened corners are called ___________

 Growth of plants restricted to specialised areas known as 

During the formation of primary plaid body  specific regions of the apical meristem produce decimal tissues,ground tissues and __________

 In flowering plants__________& ___________are main supporting elements.

___________are known as cylindrical meristems.

Bordered pits are found in ________________.

 Grit cells are found in ___________

 In most of the monocotyledons ______________are absent.

Commercial cork is obtained from ___________.