LeafCellOutlines (IMAGE) Stanford University Caption Image of a developing seedling showing the cellular outlines in the epidermis, the outermost layer of the leaf. Credit Andrew Muroyama Usage Restrictions Image may only be used with appropriate caption or credit License Licensed content 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.