Morphology of the Leaf

         Introduction to Plant Leaves

·         A leaf is a plant organ that is found above the ground and is specialized for photosynthesis
·         The leaf is typically flat and thin

·         Functions of the leaf

§  Provides for transpiration and guttation

§  Storage of food and water

·         The leaf consists of a petiole, a lamina (or the leaf blade), and stipules

§  Petiole

§  Attaches the leaf to the stem

§  Some leaves are directly attached to the stem without a petiole

§  The lamina

§  Is flat and offers surface for trapping sunlight for photosynthesis

Close-up Photography of Rubber Plant

Evans, W. C. (2009). Trease and Evans Pharmacognosy. India: Reed Elsevier Limited.

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