Reticulate venation is the feature of dicots,but some monocots also exhibit this venation,like:

The shape of guard cells in stomata in sugarcane plant is

Phyllotaxis is

In $Acacia$ species,the first few leaves are pinnately compound. Then there are leaves with flattened petiole and fewer pinnae. The leaves of the adult plant have parallel-veined flattened petioles and no pinnae. It shows that:

The approximate diameter of a Victoria leaf is: (in $m$)

The leaf base may become swollen,which is called the pulvinus. It is found in $:-$