Which one of the following plants shows alternate phyllotaxy?

A root cap is absent in the root of

In Amorphophallus and Colocasia $(Ariods)$ an extremely enlarged underground vertical stem meant for vegetative reproduction and storage is

A simple one seeded fruit in which pericarp is fused with seed coat is

Dust seeds, flattened fruits, balloon fruits are ideal for the

Write floral formula of plants of Lilaceae family and also draw a floral diagram.