In how many of the following plant organs are open vascular bundles found? Dicot root,Dicot stem,Monocot root,Monocot stem,Dicot leaf,Monocot leaf.

The vascular bundles in the stems of most of dicots are conjoint,collateral and open. In each of these bundles

What is the type of hypodermis present in the stem of maize?

The transverse section of a plant material shows the following anatomical features under microscope $:-$
$(a)$ Collenchymatous hypodermis
$(b)$ Sclerenchymatous pericycle located just above phloem bundles in semi-lunar patches.
$(c)$ Vascular bundles are arranged in a ring.
$(d)$ Vascular bundles are conjoint & open.
Plant material should be :

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

Pericycle and endodermis are not found in