Pitlk : LICHENS OF THE MINNESOTA VALLEY. 317 



Not previously reported from Minnesota and new to the Miss- 

 issippi Valley. 



79. Lecanora rubina (Vill.) Ach. 



On granite, quartzite and pipestone, common. Mankato 

 (Rapidan), June 28, 1899, no. 160. New Ulm, July 5, 1899, 

 no. 248. Granite Falls, July 11, 1899, no. 401 and July 12, 

 1899, "*^- 45^- Pipestone, July 18, 1899, no. 617, and July 19^ 

 1899, no. 644. 



80. Lecanora rubina (Vill.) x\cii. var. heteromorpha Ach. 

 With the last, frequent. New Ulm, July 5, 1899, '^°' '^^^• 



North Redwood, July 10, 1899, no. 361. Granite Falls, July 

 II, 1899, no. 409. Pipestone, July 18, 1899, and July 19, 1899,^ 

 no. 642. 



81. Lecanora muralis (Sen REB.) Schaer. 



On calcareous rocks, granite and quartzite, common at Granite 

 Falls, rare elsewhere. Mankato, June 24, 1899, no. 85. 

 Granite Falls, July 11, 1899, no. 406. Pipestone, July 18, 

 1899, no. 630. 



82. Lecanora muralis (Schreb.) Schaer. var. versicolor Fr. 

 On calcareous rocks, rare. Mankato, June 30, 1899, no. 196. 



83. Lecanora muralis (Schreb.) Schaer. var. saxicola Schaer. 

 On granitic rocks and catlinite, frequent. Mankato, June 



30, 1899, no. 202. North Redwood, July 10, 1899, no. 370. 

 Pipestone, July 19, 1899, no. 638. 



84. Lecanora frustulosa (Dicks.) Mass. 



On rocks, rare. Redwood Falls, July 8, 1899, no. 351. 

 North Redwood, Jul}- 10, 1899, no. 371. Granite Falls, July 

 II, 1899, no. 410. 



85. Lecanora subfusca (L.) Ach. 



On trees and rocks, common at Mankato only. Mankato, 

 June 23, 1899, no. 43, and June 26, 1899, no. 125. New Ulm, 

 July 5, 1899, no. 271. Granite Falls, July 11, 1899, no. 376. 



86. Lecanora subfusca (L.) Ach. var. allophana Ach. 



On granitic rocks, infrequent. Granite Falls, July 11, 1899,. 

 nos. 403 and 407. 



Not previously reported from Minnesota : 



87. Lecanora subfusca (L.) Ach. var. argentata Ach. 

 On trees, rare. Mankato, June 23, 1899, no. 78. 



