Question

Explain imbricate aestivation?

Answer 1

Aestivation:

1. Aestivation in plants is defined as a floral characteristic that shows how the calyx (sepals) and corolla (petals) are arranged in connection to each other in a flower bud.
2. Aestivation can be classified into five types which are as follows-
   1. Imbricate Aestivation
   2. Twisted Aestivation
   3. Valvate Aestivation
   4. Quincuncial Aestivation
   5. Vexillary Aestivation

Imbricate aestivation:

1. Imbricate aestivation occurs when the margins of sepals or petals overlap without a clear direction.
2. There is an irregular overlapping of petals by each other in this type of aestivation.
3. Imbricate aestivation can be further classified into ascending imbricate aestivation and descending imbricate aestivation.
4. Imbricate aestivation is seen in Cassia, Gulmohar, and Pisum.