Q. Assertion : In some flowers like lily, perianth is a term used when calyx and corolla are not distinct.
Reason : Calyx and corolla are the reproductive organs.

 2242  174 Morphology of Flowering Plants Report Error

Solution:

Sepals or calyx and petals or corolla are nonessential or accessory floral organs or floral leaves which do not take any direct part in sexual reproduction.