Fink: LICHENS OF NORTHWESTERN MINNESOTA. 685 



12, 1900, no. 683. Red lake, July 28, 1900, no. 959 and July 

 30, 1900, no. 999. 



14. Theloschistes chrysophthalmus (L.) NORM. 



On trees, rare. Battle lake, June 18, 1900, no. 6. Bemidji, 

 July ii, 1900, no. 619. Red lake, August i, 1900, no. 1047. 



15. Theloschistes polycarpus (EHRH.) TUCK. 



On trees, frequent. Battle lake, June 19, 1900, no. 35 and 

 June 20, 1900, no. 40. Leaf hills, June 26, 1900, no. 206. 

 Bemidji, July 5, 1900, nos. 468 and 489, July n, 1900, no. 

 653 and July 12, 1900, no. 675. Thief River Falls, July 18, 

 1900, no. 786. Red lake, July 27, 1900, no. 926. 



16. Theloschistes lychneus (NYL.) TUCK. 



On trees, abundant and rarely on rocks. Battle lake, June 

 19, 1900, no. 34. Bemidji, July n, 1900, nos. 628 and 654. 

 Thief River Falls, July 17, 1900, no. 773 and July 20, 1900, 

 no. 842. Red lake, July 26, 1900, no. 884, July 28, 1900, 

 no. 964 and August i, 1900, no. 1045. 



17. Theloschistes concolor (DICKS.) TUCK. 



On trees, frequent. Battle lake, June 18, 1900, no. i6a. 

 Leaf hills, June 27, 1900, no. 265. Thief River Falls, July 



19, 1900, no. 826. Red lake, July 27, 1900, no. 930. 



18. Theloschistes concolor ( DICKS.) TUCK. var. effusa TUCK. 

 On trees, rare. Henning, June 25, 1900, no. 175. Be- 

 midji, July 5, 1900, no. 460. 



19. Parmelia crinita ACH. 



On trees, rare. Bemidji, July 12, 1900, no. 691. 



20. Parmelia tiliacea (HOFFM.) FLK. 



In trees, infrequent. Battle lake, June 18, 1900, no. 16. 

 Leaf hills, June 26, 1900, no. 208. Bemidji, July 4, 1900, no. 

 449. Red lake, July 31, 1900, no. 1003. 



21. Parmelia borreri TURN. 



On trees, frequent and rarely on rocks. Battle lake, June 



20, 1900, no. 43 and June 21, 1900, no. 114. Leaf hills, June 

 27, 1900, nos. 281 and 286. Bemidji, July 11, 1900, nos. 647 

 and 658. Thief River Falls, July 19, 1900, no. 824. Red 

 lake, July 26, 1900, nos. 891 and 893. 



22. Parmelia saxatilis (L.) FR. 



Common on trees and rare on rocks. Battle lake, June 21, 



