Fiuk : LICHENS OF THE MINNESOTA VALLEY. 309 



456, and Jul}' 13, 1899, no. 492. Pipestone, July 19, 1899, no. 

 641. 



The plants are placed here provisionally. 



They resemble in part RaniaUna calicaris (L.) Fr. ysLX. fari- 

 nacea Schaer. 



Not previously reported from Minnesota and new to the Mis- 

 sissippi valley. 



5. Cetraria ciliaris (Ach.) Tuck. 



A single sterile specimen collected on an old cedar stump. 

 Granite Falls, July 17, 1899, no. 570. 



6. Usnea barbata (L.) Fr. var. florida Fr. 



On an old stump, onl}- seen once and then sterile. Granite 

 Falls, July 17, 1899, "^- 5^5- 



7. Usnea barbata (L.) Fr. var. hirta Fr. 



On sandstone, rare. Mankato (Minneopa), June 27, 1899, 

 no. 151. 



8. Usnea barbata (L.) Fr. var. rubiginea Michx. 



On sandstone and granite rocks, rare. Mankato (Minneopa 

 Falls), June 27, 1899, no. 152. Redwood Falls, July 8, 1899, 

 no. 350. 



9. Theloschistes chrysopthalmus (L.) Norm. 



On trees and old boards, rare or infrequent except at Granite 

 Falls, where the plant is frequent. Mankato, June 22, 1899, 

 no. 9. Mankato (Rapidan), June 28, 1899, no. 163. New 

 Ulm, July 4, 1899, nos. 226 and 227. Redwood Falls, July 6, 

 1899, no. 302, and July 8, 1899, "o. 340. Granite Falls, July 

 II, 1899, no. 387, and July 15, 1899, '^o. 549. 



10. Theloschistes polycarpus (Ehrh.) Tuck. 



On trees and rocks, rare. Mankato, June 26, 1899, no. 107. 

 Granite Falls, July 12, 1899, no^47, and July 15, 1899, no. 531. 



11. Theloschistes lychneus (Nyl.) Tuck. 



On trees and rocks, frequent. Mankato, June 22, 1899, no. 

 5. New Ulm, July 5, 1899, no. 263. Redwood Falls, July 8, 

 1899, no. 330. Granite Falls, July 11, 1899, no. 438, and July 

 17, 1899, no. 579. 



12. Theloschistes concolor (Dicks.) Tuck. 



On trees and old wood, common at the first locality and rare 

 at the second. Mankato, June 22, 1899, no. 7. Gran te Falls, 

 July II, 1899, no. 377. 



