Tree Lungwort (IMAGE) Norwegian University of Science and Technology Caption Lobaria pulmonaria, or tree lungwort, showed surprising genetic diversity in boreal rainforest fragments in Norway. Credit Håkon Holien 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.