Magnified 45 times from a lima bean leaf. This plastic model shows the transverse and longitudinal sections as well as the upper and lower surfaces of a typical leaf. The mesophyll includes palisada parenchyma and spongy parenchyma. Both surfaces are shown with stomas and guards cells. Also shown is the detail of vascular bundles, such as xylem, phloem and the veins. Measures: 45 cm X 22 cm X 16 cm.