Parmeliaceae Cetraria muricata Growth type fruticose Chemical results negative Forms dense, spiky mats on acid heaths, fallen tree trunks and occasionally on mossy rocks. Similar to Cetraria aculeata but less frequent, darker brown in colour and smaller (1-3cm tall). The delicate branches are more rounded with numerous small spinules and circular pseudocyphellae. Apothecia are infrequent.

Cetraria muricata
Studland, Dorset. September 2012