Sclerenchyma are called dead tissue. Considerably thicken with lignin deposition. Inter cellular space are absent. Based on the shape sclerenchyma are of two types, fibres and schelereids. cells of the fibres are elongate whereas cells of schelerids is irregular in shape. Its main functions are: it gives mechanical support, it gives protection from various adverse conditions, It helps in the conduction of water, hardness of the pulp is due to sclerenchyma, it also has economical importance eg: jute, fibre etc.
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