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Home >> Biology >> Morphology and Anatomy of Flowering Plants >> Internal Structure of Monocot Leaf - Isobilateral Leaf
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C.
Internal Structure of Monocot Leaf
(Isobilateral Leaf)

A typical monocot leaf shows following structures:
1. Epidermis
There is no difference between upper and lower epidermis, stomata are present on both surfaces (amphistomatic leaf) and guard cells are dumb bell shaped. In upper epidermis some cells become large sized and are called bulliform cells. These cells have large vacuoles containing water. Theses cells are concerned with opening and closing of stomata.

2. Mesophyll
It is not differentiated into palisade and spongy tissues.

3. Vascular Bundles
Each vascular bundle, consists of xylem towards upper surface and phloem towards lower surface. Vascular bundles are surrounded by bundle sheath. The large vascular bundles are surrounded by sclerenchymatous sheath.

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