Cyanobacterial Photobionts of Tropical Cyanolichens (image) Botanical Society of America Share Print E-Mail Caption Cyanobacterial photobionts of tropical cyanolichens of the genera Acantholichen, Coccocarpia, Dictyonema, and Stereocaulon, belong to a previously unrecognized, exclusively lichenized, novel lineage with the name Rhizonema. These photobionts are shared between unrelated lichen mycobionts co-occurring in the same habitats, leading to improved strains by means of mycobiont and environmental selection, in a similar way as farmers domesticate and improve crops. Credit Courtesy of Robert K. Lucking. Usage Restrictions None 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.