Magnified 45 times from a lima bean leaf, this plastic model vividly shows the transverse and longitudinal sections as well as the upper and lower surfaces of a typical leaf. The mesophyll includes palisade parenchyma and spongy parenchyma. The surfaces are shown with stoma and guard cells. Also shown is the detail of vascular bundles, such as xylem, phloem and the veins. Bas-relief model.