Explain with suitable examples the different types of phyllotaxy.

(N/A) Phyllotaxy refers to the pattern or arrangement of leaves on the stem or branch of a plant. It is classified into three types: alternate,opposite,and whorled phyllotaxy.
$1$. Alternate phyllotaxy: $A$ single leaf arises at each node in an alternate manner. Examples include sunflower,mustard,and China rose.
$2$. Opposite phyllotaxy: $A$ pair of leaves arises at each node and lies opposite to each other. Examples include guava and Calotropis.
$3$. Whorled phyllotaxy: If more than two leaves arise at a node and form a whorl,it is called whorled phyllotaxy. An example is Alstonia.