Modification of leaf

1.	Modification of leaf
Answer» 1. Storage Leaves: Some plants of xerophytic habitats and members of the family Crassulaceae generally have highly thickened and succulent leaves with water storage tissue. These leaves have large parenchymatous cells with big central vacuole filled with hydrophilic colloid. This kind of adaptation helps plants to conserve very limited supply of water and resist desiccation (drying up).2. Leaf Tendrils: In weak- stemmed plants, leaf or a part of leaf gets modified into green thread\xadlike structures called tendrils which help in climbing around the support.3. Leaflet Hooks: In Bignonia unguiscati the three terminal leaflets of leaf get modified into claw like hooks which help in climbing .4. Leaf Roots: In case of Salvinia three leaves are present at one node. Out of these two leaves are normal and third gets modified into adventitious roots which help in floating over the surface of water\xa0

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