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 11, 1900, no. 619. Red lake, August 1, 1900, no. 1047. 
15. Theloschistes polycarpus (Euru.) 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 11, 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 (Nyu.) Tuck. 
On trees, abundant and rarely on rocks. Battle lake, June 
19, 1900, no. 34. Bemidji, July 11, 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 1, 1900, no. 1045. 
17. Theloschistes concolor (Dicxs.) Tuck. 
On trees, frequent. Battle lake, June 18, Ig00, no. 16a. 
Leaf hills, June 27, 1900, no. 265. Thief River Falls, July 
Ig, 1900, no. 826. Red lake, July 27, 1900, no. 930. 
18. Theloschistes concolor (Dicxs.) Tuck. var. effusa Tuck. 
On trees, rare. Henning, June 25, 1900, NG. 275. /be- 
midji, July 5, 1900, no. 460. 
19. Parmelia crinita Acn. 
On trees, rare. Bemidji, July 12, 1900, no. 691. 
20. Parmelia tiliacea (Horrm.) FLkK. 
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, 
