Detail of a vascular bundle observed with the objective of 100x. It is surrounded by a pod of lignified cells, bundles of sclerenchyma fibers, and the parenchyma of the mesophyll. Inside the vascular bundle are located the phloem (yellow) and the xylem.  The xylem contains two large vessels, a  lysigenous cavity and the corresponding parenchyma. Part of the epidermis can also be observed in the microphotography