This tissue is not present in the vascular bundles.

Vascular bundles have parenchyma known as xylem parenchyma and phloem parenchyma. They have sclerenchyma in the form of phloem fibers and xylem fibers. Vascular bundles of dicot and gymnosperm stems have meristem as fascicular cambium. None of the vascular bundles have collenchyma.