Model of Developing Leaves (image) American Society of Plant Biologists Caption This is a model of developing leaves. Credit Richard Smith Usage Restrictions Use for noncommercial, educational purposes is granted without written permission. Please include a citation and acknowledge ASPB as copyright holder. For all other uses, contact email@example.com. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.