●A typical leaf consists of three main parts:
`star` `color{Brown}"Leaf Base"`
● The leaf is attached to the stem by the `color{Violet }"leaf base"`.
● It may bear two `color{Violet }"lateral small leaf like"` structures called `color{Violet }"stipules"`.
● In `color{Violet }"monocotyledons"`, the leaf base expands into a `color{Violet }"sheath"` covering the stem partially or wholly.
●In some `color{Violet }"leguminous plants"` the leaf base may become `color{Violet }"swollen"`, which is called the `color{Violet }"pulvinus"`.
`star` `color{Brown}"Petiole"`
●The `color{Violet }"petiole"` help hold the `color{Violet }"blade to light"`.
● Long thin flexible petioles allow leaf blades to `color{Violet }"flutter in wind"`, there by `color{Violet }"cooling the leaf"` and bringing `color{Violet }"fresh air"` to leaf surface.
`star` `color{Brown}"Lamina"`
● The `color{Violet }"lamina"` or the `color{Violet }"leaf blade"` is the green `color{Violet }"expanded part"` of the leaf with veins and veinlets.
● There is, usually, a `color{Violet }"middle prominent vein"`, which is known as the `color{Violet }"midrib"`.
● Veins provide `color{Violet }"rigidity"` to the leaf blade and act as `color{Violet }"channels"` of transport for water, minerals and food materials.
●The shape, margin, apex, surface and extent of incision of lamina varies in different leaves.
●A typical leaf consists of three main parts:
`star` `color{Brown}"Leaf Base"`
● The leaf is attached to the stem by the `color{Violet }"leaf base"`.
● It may bear two `color{Violet }"lateral small leaf like"` structures called `color{Violet }"stipules"`.
● In `color{Violet }"monocotyledons"`, the leaf base expands into a `color{Violet }"sheath"` covering the stem partially or wholly.
●In some `color{Violet }"leguminous plants"` the leaf base may become `color{Violet }"swollen"`, which is called the `color{Violet }"pulvinus"`.
`star` `color{Brown}"Petiole"`
●The `color{Violet }"petiole"` help hold the `color{Violet }"blade to light"`.
● Long thin flexible petioles allow leaf blades to `color{Violet }"flutter in wind"`, there by `color{Violet }"cooling the leaf"` and bringing `color{Violet }"fresh air"` to leaf surface.
`star` `color{Brown}"Lamina"`
● The `color{Violet }"lamina"` or the `color{Violet }"leaf blade"` is the green `color{Violet }"expanded part"` of the leaf with veins and veinlets.
● There is, usually, a `color{Violet }"middle prominent vein"`, which is known as the `color{Violet }"midrib"`.
● Veins provide `color{Violet }"rigidity"` to the leaf blade and act as `color{Violet }"channels"` of transport for water, minerals and food materials.
●The shape, margin, apex, surface and extent of incision of lamina varies in different leaves.