Pollen Tubes in Formation (IMAGE) McGill University Caption This is an electron micrograph scan of pollen grains forming pollen tubes in Camillia japonica. Credit Youssef Chebli & Anja Geitmann, Université de Montréal / McGill 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.