collenchyma(redirected from collenchymatous)
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collenchymaa type of plant tissue in which the cells are similar to PARENCHYMA but are smaller and have cellulose wall thickenings in layers, particularly at the angles when seen in transverse section. Collenchyma acts as a living supporting tissue, especially in young stems and leaves.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005