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 i, 1900, 

 no. 1040. 



177. Graphis scripta (L.) ACH. 



On trees, frequent, Battle lake, June 22, 1900, no. 124. 

 Henning, June 24, 1900, no. 179. Bemidji, July 4, 1900, no. 

 453> July JI 1900* nos. 603 and 648. Red lake, July 26, 

 1900, no. 880 and July 30, 1900, nos. 995 and 997. 



178. Graphis scripta (L.) ACH. var. limitata ACH. 



On trees, rare. Henning, June 30, 1900, no. 367. Bemidji, 

 July 12, 1900, no. 667. 



179. Graphis scripta (L.) ACH. var. recta (HuMB.) NYL. 



On trees, rare. Bemidji, July 12, 1900, no. 664 and July 14, 

 1900, no. 728. Red lake, August i, 1900, no. 1037. 



1 80. Arthonia lecideella NYL. 



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. 552. Thief River Falls, July 20, 1900, 

 no. 837 and July 2-1, 1900, no. 856. Red lake, July 31, 1900, 

 no. 1013. 



181. Arthonia patellulata NYL. 



On elms, rare. Bemidji, July 12, 1900, no. 699. 



182. Arthonia dispersa (SCHRAD.) NYL. 



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 (PERS.) TH. 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. 



