exÂ·peÂ·dite. (Äkâ²spÄ­-dÄ«tâ²) tr.v. exÂ·peÂ·ditÂ·ed, exÂ·peÂ·ditÂ·ing, exÂ·peÂ·dites. To speed up the progress of or execute quickly: expedite the review of a legal case; expedite a loan application.
The cortex, composed primarily of parenchyma cells, is the largest part of the primary root, but in most dicots (eudicots) and in gymnosperms that undergo extensive secondary growth, it is soon crushed, and its storage function assumed by other tissues.
Bark comprises all the tissues outside the vascular cambium of a vascular plant. The majority of the bark of woody plants develops from three meristems: the vascular cambium that gives rise to the secondary phloem, the phellogen that gives rise to the cork and the dilatation meristem that produces parenchyma cells to prevent cracking when the axis increases in diameter.