Title: Cross-section of a stem of Gustavia petiolata. Photo by S. A. Mori.
Description: Cross-section of a stem of Gustavia petiolata based on Ortiz et al. 5 from the province of Esmeraldas, Ecuador. Note the vascular bundles in the cortex, the relatively thin ring of vascular tissue, and the lighter yellow sapwood and pith. A cortical bundle is a kind of vascular bundle.
Term:
Pith
Definition:
The spongy ground tissue occupying the center of many stems.