Plate 12 



Fig. 1. Physcia stellaris, pale gray. 



Fig. 2. P. stellaris, fruits. 



Fig. 3. P. stellaris, spores. 



Fig. 4. P. aipolia, pale gray. 



Fig. 5. P. caesia, tips. 



Fig. 6. P. caesia, pale blue-gray. 



Fig. 7. P. astroidea, tips. 



Fig. 8. P. fribacia, gray to whitish. 



Fig. 9. P. fribacia, various tips. 



Fig. 10. P. hispida, pale gray. 

 Fig. 11. P. hispida, tips and fruit. 

 Fig. 12. P. endochrysea, tips and 



fruit. 

 Fig. 13. P. endochrysea, dull drab. 

 Fig. 14. P. endochrysea, spores in 



various stages. 

 Fig. 15. P. teretiusciila, pale gray. 

 Fig. 16. P. teretiusciila, tips and 



fruits. 



