Wolf Lichen (IMAGE) The University of Montana Caption Wolf lichen (<i>Letharia vulpine</i>), a lichen species studied by a team of University of Montana researchers, show that some of the world's most common lichen species actually are composed of three partners, not the widely recognized two. Credit Photo by Tim Wheeler, <a target="_blank"href="http://timwheelerphotography.com">timwheelerphotography.com</a>. 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.