Fink : LICHENS OF THE LAKE SUPERIOR REGION. 243 



649. Beaver Bay, July 13, 1897, no. 671. Snowbank lake 

 area, July 19, 1897, nos. 806 and 851. Ely, July 28, 1897, no. 

 1001. 



17. Usnea barbata (L.) FR. var. ceratina SCHAER. 



On trees, common or abundant but sterile. Gunflint, June 

 30, 1897, no. 263. Misquah hills, July 3, 1897, no. 423. 

 Tofte, (Carlton peak), July 10, 1897, no. 558. Beaver Bay, 

 July 13, 1897, nos. 665 and 672. Snowbank lake area, July 

 19, 1897, no. 807. Ely, July 28, 1897, no. 993. 



Not previously reported from Minnesota. 



18. Usnea barbata (L.) FR. var. dasypoga FR. 



On trees, common. Rose lake, June 28, 1897, no. 213. 



19. Usnea barbata (L.) FR. var. plicata FR. 



On trees, common. Snowbank lake area, July 19, 1897, 

 no. 805. Ely, July 28, 1897, no. 994. 



20. Usnea trichodea ACH. 



On trees, common. Grand Portage island, June 23, 1897, 

 no. 157. English portage, June 26, 1897, no. 190. Rose lake, 

 June 28, 1897, no. 212. Gunflint, July 2, 1897, no. 381. Mis- 

 quah Hills, July 3, 1897, no. 432, and July 5, 1897, no. 544. 

 Tofte (Carlton peak), July 10, 1897, no. 547. Tofte, July 12, 

 1897, no. 659. Beaver Bay, July 13, 1897, no. 667. Two 

 Harbors, July 17, 1897, no. 793. 



Not previously reported from Minnesota. 



21. Usnea longissima ACH. 



On trees, common along lake Superior and possibly in Mis- 

 quah hills. Sterile. Grand Portage island, June 18, 1897, 

 no. 19. Misquah hills, July 3, 1897, no. 422. Tofte, July 

 12, 1897, no. 649. Beaver Bay, July 13, 1897, no. 649a. 

 Two Harbors, July 17, 1897, no. 787. Snowbank lake area, 

 July 20, 1897, no - 850. 



Specimens were collected at Grand Portage island five feet 

 long. The plant breaks with its own weight and hangs abun- 

 dantly over branches unattached. 



Not previously reported from Minnesota. 



22. Usnea cavernosa TUCK. 



On trees, common. Grand Portage island, June 17, 1897, 

 nos. 6 and 18. 



23. Alectoria jubata (L.) TUCK. 



