Rare Tree from Guam (IMAGE) University of Guam Caption This is a ten-year-old Elaeocarpus joga street tree propagated and planted by researchers John Lawrence and Thomas Marler on the island of Guam. The rare tree species was the subject of recent research by the scientists. Credit Thomas E. Marler 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.