106 



Plate 6 



Fig. 1. Parmelia ambigua, straw-color. 



Fig. 2. P. ambigua, tip with fruit. 



Fig. 3. P. cenlrifuga, pale yellowish. 



Fig. 4. P. incurva, pale yellowish. 



Fig. S. P. physodes, greenish gray. 



Fig. 6. P. physodes, tips with brown under 



surface and pale blue soredia. 

 Fig. 7. P. viltata, greenish gray 



Fig. 8. P. pertusa, greenish gray. 



Fig. 9. P. pertusa, tip showing punctures. 



Fig. 10. P. colpodes, dark greenish. 



Fig. \\. P. colpodes, section of spore layer. 



Fig. 12. P. colpodes, spores. 



Fig. 13. P. oUvacea, bronze-brown. 



Fig. 14. P. aspidota, bronze-brown. 



Fig. 15. P. aspidota, fruits. 



