Modification of petiole into a leaf-like structure is called

Identify the correct terms for the following analogy-based question:
$(i)$ Leaf is attached to the stem by: Leaf base :: The swollen leaf base is called: ............
$(ii)$ In Neem: Pinnately compound leaf :: In Silk cotton: ............

Alstonia shows.

Which of the following is a characteristic feature of a simple leaf?

Phyllode is present in ...........

When leaves bear flowers or inflorescences in their axils,they are called: