Limestone Forest in Northern Guam (IMAGE) University of Guam Caption The trunk of a native cycad, Cycas micronesica, arches gracefully over the karst floor of a limestone forest on Guam. Credit Lauren Gutierrez 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.