Family: Parmeliaceae (Lecanoromycetes)
Species: E. prunastri
Common Name: Oakmoss
Habitat: This common lichen grows on both broadleaved and coniferous trees. It has a highly branched structure and is pale green on top, white on bottom. It reproduces with small fluffy soredia at the edges of the thallus.
Determiner: Ewan Cole
Authority: (L.) Ach.