Conjoint,collateral,and open vascular bundles are characteristic of:

Well developed pith is found in

In $Barley$ stem,vascular bundles are:

$A$ student observed the $T.S.$ of a plant organ slide under a microscope. He observed the vascular bundles in the stelar region as conjoint,collateral,and open. Based on these features of the vascular bundle,identify the correct option from below.

In ......... vascular bundles,they are surrounded by a sclerenchymatous bundle sheath.

Find the statement that is $\text{NOT}$ correct with regard to the structure of monocot stem.