Question

The flower of many angiospermic plants which show sepals and petals differ with respect to the arrangement of sepals and petals in respective whorls'. Explain.

Answer 1

The corolla is the second whorl of the flower and is composed of petals. ... The arrangements of sepals or petalsin the floral bud, with respect to the members of the same whorls are called aestivation. 1.Valvate: Whensepals or petals do not overlap one another at the margin, without overlapping.