Fink: LICHENS OF NORTHWESTERN MINNESOTA. 705 
448. Thief River Falls, July 18, 1900, nos. 779 and 790. Red 
lake, July 26, 1900, nos. 881 and 894 and August 1, 1g00, 
no. 1040. 
177. Graphis scripta (L.) Acu. 
On trees, frequent, Battle lake, June 22, Ig00, no. 124. 
Henning, June 24, 1900, no. 179. Bemidji, July 4, 1900, no. 
453, July 11, 1900, nos. 603 and 648. Red lake, July 26, 
1900, no. 880 and July 30, 1900, nos. 995 and 997. 
178. Graphis scripta (L.) Acu. var. limitata Acu. 
On trees, rare. Henning, June 30, 1900, no. 367. Bemidji, 
July 12, 1900, no. 667. 
179. Graphis scripta (L.) Acu. var. recta (Hums.) Nyt. 
On trees, rare. Bemidji, July 12, 1900, no. 664 and July 14, 
1900, no. 728. Red lake, August 1, 1900, no. 1037. 
180. Arthonia lecideella Nyt. 
On trees, infrequent. Battle lake, June 18, 1900, no. 5 and 
June 23, 1900, no. 161. Leaf hills, June 26, 1900, no. 242. 
Bemidji, July 4, 1900, no. 456, July 5, 1900, nos. 463 and 481 
and July 9, 1900, no. §52. Thief River Falls, July 20, 1g00, 
no. 837 and July 21, 1900, no. 856. Red lake, July 31, 1900, 
Ho. LOT. 
181. Arthonia patellulata Ny. 
On elms, rare. Bemidji, July 12, 1900, no. 699. 
182. Arthonia dispersa (ScHRAD.) Nyt. 
On trees, probably common. Battle lake, June 20, 1900, 
nos. 44 and 67, June 22, 1900, no. 131 and June 23, 1900, no. 
160. Henning, June 25, 1900, no. 183. Red lake, July 26, 
1900, nos. 895 and 899, July 28, 1900, no. 958 and August 2, 
1900, no. 1057. 
183. Arthonia sp. 
On trees, rare. Leaf hills, June 26, 1900, no. 213. Spores 
4-celled in pyriform asci, 18-21 mic. long by 6-7 mic. wide. 
Apothecia differently disposed than in the next. 
Not previously reported from Minnesota. 
184. Arthonia radiata (PerRs.) Tu. FR. 
On trees, rare. Battle lake, June 21, 1900, no. 116 and 
June 22, 1900, no. 135. Henning, June 29, 1900, no. 360. 
Red lake, July 26, 1900, no. 889 and July 31, 1900, nos. 1005 
and 1017. 
