Lichen -- Old-Growth Forest (IMAGE) Canadian Museum of Nature Caption Sphaerophorus globosus (coral lichen), a readily identifiable lichen, on the Avalon Peninsula, Newfoundland and Labrador. This lichen has been demonstrated to usefully discriminate between old-growth and second-growth forests in Nova Scotia, Canada). Credit Troy McMullin Usage Restrictions In conjunction with stories about the paper published in Frontiers in Ecology and the Environment. 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.