Smithsonian Report. 1950. — Llano 



PLATE 5 



1 . PARMELIA SAXATALIS ON THE LOWER SIDE AND P. CENTRIFUGA ON THE UPPER 



SIDE OF A Rock 



(Photograph by Aiier, Finland.) 



2. PARMELIA PHYSODES. SHOWING ITS DENSE GROWTH ON THE BRANCH OF A 



PINE TREE 



Mount Desert Island, Maine. 



