242 MINNESOTA BOTANICAL STUDIES. 



11. Cetraria juniperina (L.) ACH. var. pinastri ACH. 



On trees and old logs. Common at Grand Portage and Mis- 

 quah hills, elsewhere infrequent or rare, sterile. Grand 

 Portage island, June 18, 1897, no. 15. Gunflint, June 30, 

 1897, no. 261. Misquah hills, July 3, 1897, no. 411. Beaver 

 Bay, July 13, 1897, no. 679. Snowbank lake area, July 21, 

 1897, no. 865. Ely, July 28, 1897, no. 1016. 



Not previously reported from Minnesota and new to the inte- 

 rior of North America. 



12. Cetraria saepincola (EHRH.) ACH. 



On trees, rare. South Fowl lake, June 27, 1897, no. 201. 

 Not previously reported from Minnesota and new to the in- 

 terior of North America. 



13. Evernia furfuracea (L.) MANN. 



On trees, rare, sterile. Gunflint, July 2, 1897, no. 397. 

 Misquah hills, July 3, 1897, no. 434. Tofte (Carlton peak), 

 July 10, 1897, no. 573. 



Not previously reported from Minnesota. 



14. Evernia prunastri (L.) ACH. 



On trees, common. Only seen fertile once. Grand Portage 

 island, June 22, 1897, no. 81. Gunflint, June 30, 1897, no. 

 267. Misquah hills, July 3, 1897, no. 428. Tofte (Carlton 

 peak), July 10, 1897, no. 554. Tofte, July 10, 1897, no. 635. 

 Beaver Bay, July 14, 1897, no. 717. Two Harbors, July 17, 

 1897, no. 789. Snowbank lake area, July 20, 1897, no. 841. 

 Ely, July 28, 1897, no. 1002. 



15. Usnea barbata (L.) FR. var. florida FR. 



On trees, common or abundant but sterile. Grand Portage 

 island, June 17, 1897, no. 8. Misquah hills, July 3, 1897, no. 

 420. Tofte (Carlton peak), July 10, 1897, nos. 557 and 607. 

 Beaver Bay, July 14, 1897, no. 722. Snowbank lake area, 

 July 14, 1897, No. 814. 



The last has the minute and numerous fibrils of var. hirta Fr., 

 but it is not sorediate ; while the forms given below under that 

 variety are sorediate, but the fibrils are seldom minute. 



16. Usnea barbata (L.) FR. var. hirta FR. 



On trees, common or abundant but sterile. Grand Portage 

 island, June 16, 1897, no. 9. Gunflint, July i, 1897, no. 356. 

 Misquah hills, July 5, 1897, no. 477. Tofte (Carlton peak), 

 July 10, 1897, nos. 562 and 569. Tofte, July 12, 1897, no. 



