Stem of a Maize Seedling (IMAGE) Cornell University Caption A close-up of the stem of a maize seedling. In the center, the shoot apical meristem houses the stem cells that ultimately give rise to all the leaves, stems, branches and flowers of the plant. Credit Michael Scanlon, Cornell University Usage Restrictions None 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.