Leaf Anatomy

Leaf tissues are composed of layers of plant cells. Leaf anatomy the leaf is the primary photosynthetic organ of the plant.

Leaf Definition Parts Function Britannica

Leaves have special structures and shapes according to the environment in which they grow.

Leaf anatomy. Leaves are however quite diverse in size shape and various other characteristics including the nature of the blade margin and the type of venation arrangement of veins. Leaf vascular tissue is located within the mesophyll layer. Typically a leaf consists of a broad expanded blade the lamina attached to the plant stem by a stalklike petiole.

The petiole mechanically links the leaf to the plant and provides the route for transfer of water and sugars to and from the leaf. Different plant cell types form three main tissues found in leaves. Parts of a leaf the main light collecting structure on a leaf is a large broad flat surface called the leaf blade.

Sometimes leaves are divided into two or more sections called leaflets. These tissues include a mesophyll tissue layer that is sandwiched between two layers of epidermis. The tremendous variety shown in leaf structure anatomy from species to species is presented in detail below under morphology.

It consists of a flattened portion called the blade that is attached to the plant by a structure called the petiole. The internal anatomy of leaves is complex with many layers. The blade has many layers that not only help the plant move but also help it store.

Underneath the barrier layers the leaf has special layers that enable it to process sunlight. The outer layers of the leaf are designed to protect it serving as a strong barrier.

Anatomy Of A Leaf Use These Leaf Parts To Identify A Tree