The Distinctive Trunk and Aerial Roots (IMAGE) University of Michigan Caption The distinctive trunk and aerial roots of the tropical tree Symphonia globulifera in a rain forest in Panama. Credit Rolando Pérez, Smithsonian Tropical Research Institute 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.