Types of Leaf I Monocot and Dicot Leaf I Comparison of types of Leaves I #biologynotes #biology #botany #Kvs #nvs #pgtbiology

TYPES OF LEAVES:



1.Dorsiventral/Bifacial: 

The leaves that are having distinct upper and lower surface are called Bifacial Leaves.

They are Horizontal.

Mostly in Dicots.

Their Upper surface is shiny (Ventral/Adaxial) while Lower surface is dull (Dorsal/Abaxial).

Stomata usually on Lower Surface.

Anatomically mesophyll is differentiated into upper palisade and lower spongy Parenchyma

2.Isobilateral/Equifacial:

The leaves that are having no distinct upper and lower surface are called Equifacial Leaves.

They are Vertical.

Mostly in Monocots and in some Dicots.

Their Upper surface and Lower surface are similar.

Anatomically mesophyll is not differentiated.

Stomata usually on Lower Surface.

SOME IMPORTANT POINTS:

Floating plants has stomata on the upper surface/abaxial surface of leaf.

In Submerged plants stomata are absent

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