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

The $T.S.$ of the stem of $Cucurbita$ can be identified from the $T.S.$ of a sunflower stem by the presence of:

The vascular bundles in the stem of monocots are typically

Identify $P, Q,$ and $R$ in the given internal structure.

$A$: Endodermis is present between the general cortex and pericycle in maize stem. $R$: Eustele is present in maize stem.

The transverse section of a plant material shows the following anatomical features: $(a)$ the vascular bundles are conjoint,scattered,and surrounded by sclerenchymatous bundle sheaths,$(b)$ phloem parenchyma is absent. What will you identify it as?