Archive | Simple Tissue

Collenchyma is a cell and tissue type in which the primary walls are unevenly thickened and consist of homogeneous, more or less elongated living cells; it provides mechanical support to the plant organs where present. i. Distribution: Collenchyma cells are present at the periphery of herbaceous stems, petioles (e.g. Begonia) and in the ribs of some leaves (e.g. Nerium). They [...]