Fink: lichens of the northern boundary. 231 



265. Melaspilea arthonioides (Fee) Nyl. 



On trees, infrequent. Warroad, June 26, 1901, nos. 176 and 

 178. Flag island, July 12, 1901, no. 558. Rainy Lake City, 

 August 3, 1901, no. 1141. Kettle falls, August 13, 1901, no. 



i833- 



266. Opegrapha varia (Pers.) Fr. 



On trees, especially common on cedars in swamps. Beau- 

 dette, June 18, 1901, no. 34. Warroad, July 2, 1901, no. 330. 

 Oak island, July 10, 1901, no. 498. Emo, July 17, 1901, no. 

 674. Koochiching, July 26, 1901, no. 913, July 27, 1901, no. 

 966 and July 29, 1901, no. 986. Rainy Lake City, August 3, 

 1901, no. 1 146. Kettle falls, August 13, 1901, nos. 1440 and 

 1447. Tower, August 26, 1901, no. 1775. 



267. Opegrapha quaternella Nyl. 



On Peltigera apkthosa (L.) Hoffm., rare. Emo, July 23, 

 1901, no. 838. 



Not previously reported from Minnesota. 



268. Graphis scripta (L.) Ach. 



On trees, common. Beaudette, June 18, 1901, no. 15. War- 

 road, July 2, 1901, no. 318. Oak island, July 8, 1901, nos. 

 420 and 431. Emo, July 17, 1901, nos. 640 and 641. Kooch- 

 iching, July 26, 1901, no. 926. Rainy Lake City, August 3, 

 1901, no. 1163. Kettle falls, August 13, 1901, nos. 1424 and 

 1435. Harding, August 19, 1901, no. 1570 and August 20, 

 1901, no. 1632. Tower, August 26, 1901, no. 1803. 



269. Graphis scripta (L.) Ach. var. recta (Humb.) Nyl. 



On trees, usually birch, rare. Oak island, July 8, 1901, no. 

 429. Emo, July 23, 1901, no. 824. Kettle falls, August 13, 

 1901, no. 1442. Emo, July 19, 1901, no. 737. Tower, August 

 29, 1901, no. 1873. 



270. Arthonia patellulata Nyl. 



On Pofulus. Part of material recorded as Biatora atrofur- 

 ■purea (Mass.) Hepp. belongs here. Needs more study. 



271. Arthonia lecideella Nyl. 



On trees, frequent. Beaudette, June 18, 1901, no. 3. War- 

 road, June 25, 1901, nos. 151 and 158, June 28, 1901, no. 235 

 and July 2, 1901, no. 320. Emo, July 17, 1901, no. 659. 

 Koochiching, July 25, 1901, nos. 858 and 883. Rainy Lake 

 City, August 5, 1 901, no. 1185. Harding, August 19, 1901, 

 no. 1593. Tower, August 23, 1901, no. 1670. 



