216 MINNESOTA BOTANICAL STUDIES. 



August 10, 1901, nos. 1368 and 1374. Harding, August 17, 

 1901, no. 1542. Tower, August 24, 1901, no. 1724. 



160. Cladonia cristatella Tuck. var. vestita Tuck. 



On rocks, locally common. Tower, August 2, 1901, no. 



1754- 



Not previously reported from Minnesota, and new to the 



Mississippi valley. 



161. Cladonia amaurocraea (Flk.) Schaer. 



On earth over rocks, frequent. Warroad, July 4, 1901, no. 

 359. Blueberry island, July 17, 1901, nos. 576, 606 and 607. 

 Emo, July 20, 1901, no. 775. Koochiching, July 27, 1901, no. 

 937. Rainy Lake City, August 3, 1901, no. 1129, and August 

 8, 1901, nos. 1310 and 1311. Kettle falls, August 12, 1901, 

 no. 1379. Harding, August 17, 1901, no. 1564 and August 20, 

 1901, no. 1640. Tower, August 29, 1901, nos. 1866 and 1870. 



162. Cladonia uncialis (L.) Web. 



On earth, usually over rocks, frequent. Warroad, July 4, 

 1901, no. 338. Flag island, July 12, 1901, no. 535. Emo, 

 July 20, 1901, no. 773. Koochiching, July 31, 1901, no. 1036. 

 Rainy Lake City, August 2, 1901, no. 1108, and August 5, 

 1901, no. 1220. Kettle falls, August 12, 1901, no. 1394. 

 Tower, August 29, 1901, no. 187*1. 



163. Cladonia uncialis (L.) Web. var. obtusata Ach. 



On earth, rare. Blueberry island, July 13, 1901, no. 597. 

 Not previously reported from Minnesota and new to North 

 America. 



164. Cladonia furcata (Huds.) Schrad. 



On earth and old wood, rare. Emo, July 19, 1901, no. 728, 

 and July 21, 1901, no. 771. Koochiching, July 30, 1901, no. 

 1009. 



165. Cladonia furcata (Huds.) var. pinnata (Flk.) Wainio. 

 On earth over rocks, infrequent. Rain Lake City, August 



7, no. 1273. 



Not previously reported from Minnesota. 



166. Cladonia furcata (Huds.) Schrad. var. scabriuscula 

 (Del.) Coem. 



On earth and old wood, frequent. Warroad, July 5, 1901, 

 no. 374. Emo, July 20, 1901, no. 764. Koochiching, July 



