Four Type of Phyllotaxy(Leaf Arrangement)

Alternate phyllotaxy: In this type the leaves are arranged alternatively in the nodes. There is only one leaf at each node.

Opposite Phyllotaxy: In this type of arrangement two leaves are present at each node, lying opposite to each other.

Ternate Phyllotaxy : In this type there are three leaves attached at each node eg. Nerium

Whorled : In this type, more than three leaves are present in a whorl at each node eg. Alamanda.