Lyell's Orthotrichum Moss (image) USDA Forest Service - Pacific Northwest Research Station Share Print E-Mail Caption A US Forest Service Pacific Northwest Research Station-led science team collected samples of Lyell's orthotricum moss, which grows abundantly in Portland, Oregon, and tested them for the presence of metals. Credit Sarah Jovan, U.S. Forest Service Usage Restrictions Include credit. Share Print E-Mail 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.