210 MINNESOTA BOTANICAL STUDIES. 



119. Lecanora hageni Ach. 



On rocks, rare. Rainy Lake City, August 5, 1901, no. 1200. 

 A peculiar form. 



120. Lecanora varia (Ehrh.) Nyl. 



On rocks and trees, frequent. Oak island, July 10, 1901, 

 no. 503 and July 11, 1901, no. 523. Flag island, July 12, 1901, 

 no. 561. Blueberry island, July 13, 1901, no. 593. Eino, 

 July 22, 1901, no. 819. Rainy Lake City, August 1, 1901, 

 no. 1065, August 5, 1901, no. 1187, August 7, 1901, no. 1251 

 and August 8, 1901, no. 1280. Harding, August 21, 1901, 

 nos. 1662 and 1663. Tower, August 24, 1901, nos. 1716 and 



1737- 



121. Lecanora varia (Ehrh.) Nyl. var. symmicta Ach. 



On dead and living wood, frequent. Beaudette, June 20, 

 1901, no. 71. Warroad, June 26, 1901, no. 187. Blueberry 

 island, July 13, 1901, no. 586. Emo, July 18, 1901, no. 696. 

 Koochiching, July 25, 1901, no. 689, July 26, 1901, nos. 891 

 and 919, July 27, 1901, no. 949 and July 29, 1901, no. 979. 

 Rainy Lake City, August 2, 1901, nos. 1124 and 1126 and 

 August 6, 1901, no. 1228. Kettle falls, August 9, 1901, no. 

 1333. Harding, August 20, 1901, no. 1648. Tower, August 

 23, 1 901, nos. 1672 and 1706 and August 26, 1901, nos. 1773 

 and 1787. , 



122. Lecanora varia (Ehrh.) Nyl. var. polytropa Nyl. 

 On rocks, rare. Warroad, July 7, 1901, no. 367. 



123. Lecanora dispersa Pers. 



On old wood, rare. Warroad, June 29, 1901, no. 277. Le 

 Clair, July 6, 1901, no. 383. Rainy Lake City, August 2, 

 1 901, no. 1112. 



Spores somewhat smaller than those of plants from Europe, 

 and the plants also exhibiting better thalline exciple in ours. 

 Also near Lecanora effusa (Pers.) Ach. collected in Nebraska 

 by T. H. Williams. 



Not previously reported from Minnesota and new to the in- 

 terior of North America. 



124. Lecanora pallescens (L.) Schaer. 



On cedars in swamps, frequent. Beaudette, June 19, 1901, 

 nos. 60 and 62 and June 20, 1901, no. 70. Warroad, June 29, 

 1901, nos. 263 and 274 and July 1, 1901, nos. 293, 302, 308 

 and 309. Oak island, July 9, 1901, no. 434. Mainland, July 



