Fink: LICHENS OF THE NORTHERN BOUNDARY. I'll 



16, 1901, no. 628. Emo, July 17, 1901, no. 673 and July 23, 

 1901, no. 831. Koochiching, July 25, 1901, no. 880 and July 

 29, 1901, no. 1001. Rainy Lake City, August 3, 1901, no. 

 1 160. Kettle falls, August 9, 1901, no. 1317 and August 13, 

 1901, no. 145 1. Harding, August 16, 1901, no. 1507 and 

 August 19, 1901, no. 1610. Tower, iVugust 26, 1901, no. 1799. 



125. Lecanora verrucosa (Ach.) Laur. var. mutabilis Th. Fr. 

 On trees, rare. Oak island, July 8, 1901, no. 406 and July 



8, 1901, no. 466. Emo, July 18, 1901, no. 694. Harding, 

 iVugust 19, 1901, no. 1592. 



126. Lecanora subepulotica Nyl. 



On rocks, rare. Emo, July 22, 1901, no. 816. 

 Not previously reported from Minnesota and new to the inte- 

 rior of North America. 



127. Lecanora cinerea (L.) Sommerf. 



On rocks, common. Warroad, July 4, 1901, no. 371. Oak 

 island, July 9, 1901, nos. 454 and 479, July 10, 1901, nos. 483 

 and 514, July 11, 1901, nos. 522 and 526 and July 15, 1901, 

 nos. 619 and 621. Emo, July 20, 1901, nos. 788 and 791 and 

 July 22, 1901, no. 815. Koochiching, July 26, 1901, no. 911. 

 Kettle falls, August 9, 1901, no. 1346. Harding, August 19, 

 1901, no. 1603, and August 20, 1901, no. 1617. Tower, Au- 

 gust 23, 1901, nos. 1669 and 1708. August 24, 1901, nos. 1728 

 and 1730 and August 28, 1901, no. i860. 



128. Lecanora cinerea (L.) Sommerf. var. laevata Fr. 



On rocks, common. AVarroad, July 4, 1901, nos. 366 and 

 370. Oak island, July 10, 1901, nos. 499 and 515. Blueberry 

 island, July 13, 1901, nos. 562 and 563. Rainy Lake City, 

 August 6, 1901, no. 1230. Harding, August 19, 1901, nos. 

 1601 and 1608. 



129. Lecanora cinerea (L.) Sommerf. var. gibbosa Nyl. 



On rocks, rare. Oak island, July 15, 1901, no. 620. Koo- 

 chiching, July 26, 1901, no. 917. 



130. Lecanora calcarea (L.) Sommerf. ? 



On rocks, rare. Harding, August 21, 1901, no. 1664. 

 Scarcely differing from some forms referred to L. cinerea (L.) 

 Sommerf., except in the plainly pruinose apothecia. 



131. Lecanora lacustris (With.) Nyl. 



On wet rocks, rare. Harding, August 16, 1901, nos. 1518 

 and 1528. 



