Explain with suitable examples the different types ofphyllotaxy

Explain with suitable examples the different types ofphyllotaxy.

The mode of arrangement of leaves on the stem and its branches is called phyllotaxy (phyllon-leaf; taxis-arrangement). They are arranged most systematically, regularly and mathematically, so as to get proper sunlight and avoid overcrowding.
Phyllotaxy in leaves is offollowiny three types
(i) Alternate A single leaf arises at a node, e.y., China rose, mango, mustard, sunflower, etc.
(ii) Opposite Two leaves arise at a node, opposite to each other, e.y., Guava, Calotropis tulsi, etc.
(iii) Whorled More than two leaves arise at each node forming a circle or whorl,
e.y., Alstonia Scholaris, etc.