Question

Out of 5 petals of a flower bud , two are completely internal, two are completely external and the remaining one has its margin at one end internal and external at the other. Which of the following is this type of aestivation?

• A. Imbricate
• B. Valvate
• C. Vexillary
• D. Quincuncial

Answer 1

The correct option is D Quincuncial

Quinquncial aestivation is a common type of imbricate aestivation of a five-membered calyx or corolla in which two members overlap their neighbours by both edges, two are overlapped on both edges and one overlaps one neighbour and is overlapped by the other, as in calyx of roses.