Antarctic Lichen (IMAGE) British Antarctic Survey Caption Lichen, Usnea aurantiaco-atra with abundance of black apothecial discs of varying ages. Credit Pete Bucktrout Usage Restrictions To be used in association with this press release only. All other use should be referred to BAS Press Office 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.