which are the four types of estivation in a flower explain
Answers
They are as follows:
1)Valvate aestivation: Sepals or petals in a whorl just touch one another. ...
2(Twisted aestivation: One margin of the appendage overlaps the margin of the next appendage. ...
3)Imbricate aestivation: Margins of sepals or petals overlap one another but not in any particular direction. ...
4)Vexillary aestivation
Required Answer:
☑Aestivation - The mode of arrangement sepals or petals in floral bud with respect to the other members of the same whorl is known as aestivation.
☑Following are the is known as aestivation :
1) Valvate- when sepals or petals in a whorl just touch one another at the margin, without overlapping
☑Eg. Calotropis
2) Twisted - If one margin of the appendage overlaps that of the next one.
☑Eg- China rose, ladyfinger, cotton etc.
3) Imbricate - If the margins of sepals or petals overlap one another but not in any particular direction.
☑Ex- Cassia and gulmohar
4) Vexillary - In pea and bean flower, there are 5 petals, the largest (standard) overlaps the lateral petals (wings) which in turn overlaps the two smallest interior petals (keel).