228 MINNESOTA BOTANICAL STUDIES. 



243. Lecidea enteroleuca Fr. var. flavida Fr. 



On trees, infrequent. Warroad, June 26, 1901, no. 188 and 

 June 27, 1901, no. 212. Rainy Lake City, August 3, 1901, 

 no. 1 143. Tower, August 28, 1901, no. 1863. 



244. Lecidea elabens Fr. 



On old wood, rare. Warroad, June 26, 1901, no. 251 and 

 July 5, 1901, no. 383. Kettle falls, August 9, 1901, no. 1329. 

 Tower, August 23, 1901, no. 1697. 



Not previously reported from Minnesota and new to the 

 United States. Dr. T. Hedlund, who determined the plant, 

 considers it the same as Lecidea melanchcima Tuck. 



245. Lecidea cyrtidia Tuck. 



On rocks, rare. Rainy Lake City, August 8, 1901, no. 1308. 



246. Buellia parasema (Ach.) Th. Fr. 



On trees common, especially on balsams in swamps. Beau- 

 dette, June 19, 1901, no. 63 and June 20, 1901, nos. 68 and 73. 

 Warroad, June 24, 1901, nos. 269 and 272 and July 1, 1901, 

 no. 290. Oak island, July 8, 1901, nos. 386 and 391. Main- 

 land, July 16, 1901, no. 632. Emo, July 17, 1901, no. 661 and 

 July 18, 1901, no. 702. Koochiching, July 25, 1901, no. 878. 

 Rainy Lake City, August 2, 1901, no. 11 24 and August 3, 

 1901, no. 1175. Kettle falls, y August 9, 1901, no. 1314, 

 August 13, 1901, no. 1445 and August 15, 1901, no. 1480. 

 Tower, August 23, 1901, no. 1677 and August 26, 1901, no. 

 1786. 



247. Buellia alboatra (Hoffm.) Th. Fr. var. saxicola Fr. 



On rocks, rare. Rainy Lake City, August 3, 1901, no. 

 1144 and August 8, 1901, no. 1291. 



248. Buellia myriocarpa (DC.) Mudd. 



Frequent on trees and old wood, and especially common on 

 pines. Warroad, July 3, 1901, no. 335. Oak island, July 9, 

 1901, no. 449. Rainy Lake City, August 7, 1901, no. 1256. 

 Harding, August 16, 1901, no. 1515 and August 20, 1901, no. 

 1638. Tower, August 28, 1901, no. 1857 and August 29, 

 1901, no. 1876. 



249. Buellia myriocarpa ( DC. ) Mudd. var. punctiformis 

 Hoffm. 



On old wood, rare. Oak island, July 9, 1901, no. 446. 

 Koochiching, July 27, 1901, no. 952. 



