Explanation:
: Epinastic movements are generally observed in leaves, flowers, petals and buds. In these structures at some stage of development, growth in one surface is more than the growth on the other surface. There is two types a movement-epinasty and hyponasty.
- A nastic movement in which a plant part such as a flower petal is bent outward and often down ward. An example for epinasty is the opening of a flower and the drooping of a bud.
- In hyponastic movement, there will be more growth on the lower surface of sepals and petals, the flower will close.
