536 CALIFORNIA ACADEMY OF SCIENCES. 



10. Alectoria sarmentosa Ach., Tuck. Syn. i, 45; 

 sterile. Sitka. 



11. Alectoria prolixa (Ach.) Nyl., A. jiihata c. 

 ifn-plexa Tuck. Syn. i, 44; fertile. Sitka. 



12. Chlorea vulpina (L.) Nyl., Tuck. Syn. i, 28; 

 sterile on dead wood. Yellowstone Park. 



13. Platysma lacunosum (Ach.) Nyl., Tuck. Syn, i, 

 35; sterile. Sitka. 



14. Parmelia sulcata Tayl., Nyl., Tuck. Syn. i, 59; 

 on trees. Sitka. 



15. Parmelia vittata (Ach.) Nyl., Tuck. Syn. i, 60; 

 fertile on twigs of trees. Sitka. 



16. Parmelia enteromorpha Ach., Tuck, Syn. i, 60; 

 evernioid, fertile. Sitka. 



17. Stictina scrobiculata (Scop.) Nyl., Tuck. Syn. 

 i, 102; fertile. Sitka. 



18. Sticta pulmonaria (L.) Ach., Tuck, Syn. i, 94; 

 fertile. Sitka, 



19. Nephroma arcticum (L.) Fr., Tuck. Syn. i, 103; 

 sterile. Sitka. 



20. Physcia lychnea (Ach.) Nyl,, Tuck. Syn. i, 50; 

 on bark. Sitka. 



21. Physcia lychnea (Ach,) var, pygm^a (Bory) 

 Nyl,, Tuck, Syn, i, 51; upon granitic rocks, Sitka, 



22. Physcia lychnea (Ach.) var. laciniosa (Schser.) 

 Stzb. Helv. No, 305, Thallus red on application of 

 hydrate of potassa; on bark, Sitka. 



23. Lecanora elegans (Link) Ach,, Tuck, Syn. i, 

 1 70; on rocks. Sitka, Yellowstone Park. 



24. Lecanora cerinella Nyl. Luxb, 370; on thin 

 twigs of coniferous trees. Monterey. 



25. Lecanora laciniosa (Duf.) Nyl,, Theloschistes 

 concolor Tuck, Syn. i, 51 p. p- Thallus without re- 

 action on application of hydrate of potassa; on bark, 

 Sitka, 



