Fink : LICHENS OF THE LAKE SUPERIOR REGION. 251 



66. Sticta scorbiculata (Scop.) ACH. 



Mossy rocks and trees, rare except at Grand Portage where 

 frequent. Grand Portage, June 24, 1897, no. 176. Tofte, 

 July 10, 1897, no. 629. 



Not previously reported from Minnesota and new to the in- 

 terior of North America. 



67. Nephroma tomentosum (HOFFM.) KOERB. 



On rocks and trees, frequent. Grand Portage island, June 

 19, 1897, no. 26. Misquah hills, July 5, 1897, no. 541. Tofte, 

 July 10, 1897, no. 634. Snowbank lake area, July 19, 1897, 

 no. 803. 



Not previously reported from Minnesota and new to the in- 

 terior of North America. 



68. Nephroma helveticum ACH. 



On rocks and occasionally on trees and earth, frequent. 

 Grand Portage island, June 23, 1897, no. 133. Gunflint June, 

 29, 1897, no. 235, and June 30, 1897, no. 250. Misquah hills, 

 July 5, 1897, no. 540. Beaver Bay, July 14, 1897, no. 740. 

 Tofte (Carlton peak), July 10, 1897, no. 605. Snowbank 

 lake area, July 24, 1897, no. 921, and July 26, 1897, no. 961. 

 Ely, July, 28, 1897, no. 1005. 



69. Nephroma laevigatum ACH. 



On trees, rare. Misquah hills, July 5, 1897, no. 426. Two 

 Harbors, July 17, 1897, no. 799. 



Not previously reported from Minnesota. 



70. Nephroma laevigatum ACH. var. parile NYL. 



On rocks, locally common. Grand Portage, June 23, 1897, 

 no. 113. 



Not previously reported from Minnesota. 



71. Peltigera venosa (L.) HOFFM. 



On earth and mossy rocks, rare, spores reaching 60 mic. in 

 length and occasionally five-celled. Grand Portage, June 23, 

 1897, no. 150. Portage at south end of South Fowl lake, 

 June 26, 1897, no. 207. 



72. Peltigera aphthosa (L.) HOFFM. 



On earth or rocks, common or frequent. Grand Portage 

 Island, June 24, 1897, no. 177. Gunflint, June 30, 1897, no. 

 248. Misquah hills, July 5, 1897, no. 526. Palisades, July 

 15, 1897, no. 770. Snowbank lake area, July 19, 1897, no. 829. 



