Gyrotrema

Gyrotrema is a genus of lichen-forming fungi in the family Graphidaceae. There are six species assigned to the genus:
 * Gyrotrema album
 * Gyrotrema aurantiacum
 * Gyrotrema flavum
 * Gyrotrema papillatum
 * Gyrotrema sinuosum
 * Gyrotrema wirthii