Fink : LICHENS OF THE LAKE SUPERIOR REGION. 261 



the apothecia are falsely lecanoroid. The last feature is due 

 no doubt to great age of these plants which began growth when 

 the trees were young. The extremes appear macroscopically 

 like distinct species. 



Not previously reported from Minnesota. 



139. Pertusaria pustulata (Acn.) NYL. 



On trees, infrequent. Rose lake, June 28, 1897, no. 228. 

 Gunflint, July i, 1897, no. 310. Misquah hills, July 3, 1897, 

 no. 418. 



140. Pertusaria glomerata (Acn.) SCHAER. 



On rocks, very rare. Misquah hills, July 5, 1897, no. 490. 

 Not previously reported from Minnesota and new to the in- 

 terior of North America. 



141. Gyalecta fagicola (HEPP.) TUCK. 



On trees, rare. Snowbank lake area, July 22, 1897, no. 

 880. 



Not previously reported from Minnesota and new to west of 

 of New England. 



142. Urceolaria scruposa (L.) NYL. 



On rocks, rare or infrequent, but widely distributed and no. 

 126 with thallus approaching var. gypsacea Nyl. Grand Port- 

 age island, June 25, 1897, no. 126. Gunflint, June 30, 1897, 

 no. 302. Misquah hills, July 5, 1897, no. 473. Beaver Bay, 

 July 13, 1897, no. 701. Snowbank lake area, July 23, 1897, 

 no. 899. Ely, July 28, 1897, no. 978. 



143. Stereocaulon coralloides FR. 



On rocks, frequent. Tofte (Carlton peak), July 10, 1897. no. 



549- 



Not previously reported from Minnesota and new to the in- 

 terior of North America. 



144. Stereocaulon paschale (L.) FR. 



On earth among rocks, common. Grand Portage (Mt. 

 Josephine), June 19, 1897, no. 49. Grand Portage island, 

 June 21, 1897, no. 50. Gunflint, June 30, 1897, no. 233. 

 Misquah hills, July 5, 1897,110. 482. Beaver Bay, July 13, 

 1897, no. 689. Palisades, July 15, 1897, no. 758. Snowbank 

 lake area, July 24, 1897, no. 927. No. 49 seems to approach 

 the above. Also no. 50 has the stout podetia of S. tomentosum 

 (Fr.) Th. Fr. and is somewhat tomentose. Yet it appears 

 nearer herb, specimens of the above. 



