Question

write 3 major difference between petiole and pulvinus??

Answer 1

Petiole:
1.It is stalk of the leaf.
2.Petiole is nearly cylin-drical.
3.It lifts the leaf blade above the stem.

Pulvinus:
1.It is base of the leaf.
2.Pulvinus is swollen.
3.It helps in sleep and other movements.

Answer 2

petiole :-The stalk of a leaf 
              Attaching the blade to the stem.
              Help the lamina to flutter in wind creating a cooling effect and                      provinding fresh air for the leaf surface.
 
pulvinus:-A joint on a plant leaf that may swell 
               Cause movement of the leaf or leaflet.