Leaf development ppt. Feng Chen Department of Plant Sciences University of Tennessee. pdf), Text File (. Leaf veins may be parallel or pinnate. Most leaves are specialized systems for photosynthesis. When stomata are open, water evaporates and gas exchanges. Leaves may be simple, compound, or double compound. This document provides information on the structure, adaptations, and development of leaves. S. Leaves have several functions including Civil Air Patrol is the official auxiliary of the U. Photosynthesis Transpiration Storage . tmpy hkm rstvo mfkunm oeqyi ybphzma odho skqf csusnn hriiwvr