Pink: lichens of the Minnesota valley. 311 



Not previously reported from Minnesota and new to the 

 Mississippi valley. 



24. Parmelia olivacea (L.) Ach. 



On trees and old wood, rare. Mankato, June 23, 1899, no. 

 61. Granite Falls, July 15, 1899, no. 537. 



25. Parmelia olivacea (L.) Acii. var. prolixa Ach. 



On granitic rocks, quartzite, pipestone and once collected on 

 earth, frequent except at the hrst locality, where it is rare. 

 Morton, July 7, 1899, no. 315. Granite Falls, July 11, 1899, 

 no. 405. Pipestone, July 18, 1899, nos. 594, 609 and 621, and 

 July 19, 1899, no. 643. 



26. Parmelia caperata (L.) Acii. 



On trees and granitic rocks, frequent. Mankato, June 23, 

 1899, no. 53. Mankato (Minneopa) June 27, 1899, no. 153. 

 New Ulm, July 5, 1899, no. 285. Granite Falls, July 11, 

 1899, no. 441. 



27. Parmelia conspersa (Ehrh.) Ach. 



On granitic rocks, quartzite and pipestone, common or abun- 

 dant. New Ulm, July 5, 1899, no. 269. Granite Falls, July 

 12, 1899, no. 449. Pipestone, July 18, 1899, no. 589, and 

 July 19, 1899, no. 637. 



28. Physcia speciosa (Wulf., Ach.) Nyl. 



On rocks and mossy bases of trees, infrequent. Mankato, 

 June 22, 1899, no. 13. New Ulm., July 5, 1899, no. 281. 

 Granite Falls, July 11, 1899, ^^' 374- 



29. Physcia granulifera (Ach.) Tuck. 



On trees, rare. Mankato, June 24, 1899, no. 84. Granite 

 Falls, Jul}^ II, 1899, no. 372. 



30. Physcia pulverulenta (Schreb.) Nyl. 



On rocks and trees, frequent. Mankato, June 23, 1899, no. 

 52. New Ulm, July 5, 1899, no. 286. Granite Falls, July 11, 

 1899. no. 383. 



31. Physcia stellaris (L.) Tuck. 



On trees and rocks, common or abundant. Mankato, June 

 23, 1899, ^^- ^- New Ulm, July 5, 1899, no 297. Granite 

 Falls, July 11, 1899 no. 431, and July 13, 1899, no. 481. 



32. Physcia stellaris (L.) Tuck. var. apiola Nyl. 



On granitic rocks, infrequent. Mankato, June 23, 1899, no. 

 44. Granite Falls, July 12, 1899, no. 463. 



