Common on exposed trunks of matipo (Myrsine chathamica - as seen here) and akeake (Olearia traversiorum). Upper thallus surface mostly smooth (no reticulate cracking, though occasionally flaking on older portions of thallus), sorediate. One of the many races referred to Parmotrema perlatum in New Zealand. Voucher: P.J. de Lange CH2940, UNITEC 9758