318 MINNESOTA BOTANICAL. STUDIES. 



88. Lecanora subfusca (L.) ACH. var. coilocarpa ACH. 



On trees, granite and sandstone, rare. Mankato (Rapidan), 

 June 28, 1899, no. i6^a. Mankato, July i, 1899, no. 210. 

 Granite Falls, July 12, 1899, no. 446. 



89. Lecanora subfusca (L.) ACH. var. distans ACH. 



On sandstone, rare. Mankato (Rapidan), June 28, 1899, no. 

 182. 



90. Lecanora hageni ACH. 



On calcareous and granitic rocks and on old boards, common. 

 Mankato, June 21, 1899, no 91, and July, i, 1899, nos. 215, 

 217 and 218. Granite Falls, July u, 1899, nos. 426 and 436, 

 and July 13, 1899, no. 506. 



91. Lecanora varia (EHRH.) NYL. 



On old wood and trees, infrequent. Mankato, June 24, 1899, 

 no. 86. Mankato (Rapidan), June 28, 1899, no. 159. New 

 Ulm, July 5, 1899, no. 280. Granite l<alls, July n, 1899, 

 no. 386. 



92. Lecanora erysibe NYL. 



On granitic rocks, rare. Mankato, June 23, 1899, no. 63, 

 and June 26, 1899, no. 131. Granite Falls, July 13, 1899, no. 



504- 



93. Lecanora cinerea (L.) SOMMERF. 



On granite, quartzite and catlinite, common. Mankato, 

 June 6, 1899, no. 62. New Ulm, July 5, 1899, no. 261. Gran- 

 ite Falls, "July 13, 1899, no. 493. Pipestone, July 18, 1899, 

 nos. 625 and 633. 



94. Lecanora cinerea (L.) SOMMERF. var. laevata FR. 

 On quartzite, rare. New Ulm, July 5, 1899, no. 277. 



95. Lecanora cinerea (L.) SOMMERF. var. gibbosa NYL. 

 On bowlders, rare. Mankato, July i, 1899, no. 221. 



96. Lecanora calcarea (L.) SOMMERF. 



On limestone, rare. Mankato, June 29, 1899, no. 188. 



97. Lecanora calcarea (L.) SOMMERF. var. contorta FR. 



On limestone, drift pebbles and granite, infrequent. Man- 

 kato, June 30, 1899, no. 199. Redwood Falls, July 8, 1899, 

 no. 333. Granite Falls, July n, 1899, no. 402, and July 14, 

 1899, no. 524. 



