Explain the following terms: (a) Gamosepalous (b) Polysepalous

Explain the following terms:
(a) Gamosepalous
(b) Polysepalous

(a) Gamosepalous: If sepals are joint or fused together, the calyx is said to be gamosepalous.
E.g. Hibiscus

(b) Polysepalous: If sepals are free and not joined together, the calyx is said to be polysepalous.
E.g. Rose, Mustard