Fink: THE LICHENS OF MINNESOTA. 717 



10. Aleetoria jubata (L.) Tuck. var. ehalybeiformis Ach. 

 On old fences, frequent. July 10, 1896, no. 218. 



Not previously reported from Minnesota. 



11. Thelosehistes ehrysopthalmus (L. ) Norm. 

 On tamaracks, very rare. June 19, 1896, no. 20. 



12. Thelosehistes polyearpus (Ehrh.) Tuck. 



On dead wood and occasionally on living trees. Preferring 

 Populus, frequent. July 4, 1896, no. 108; July 9, 1896, no. 129. 



13. Thelosehistes lychiieus (Dyl.) Tuck. 



On trees, infrequent and seldom fruited. June 26, 1896, 

 no. 32. 



14. Thelosehistes concolor (Dicks.) Tuck. 

 On trees, common. June 28, 1896, no. 29. 



15. Parmelia crinita Ach. 



On trees, infrequent. July 4, 1896, no. 102; July 13, 1896, 

 no. 202. 



Not previously reported from Minnesota. 



16. Parmelia tiliacea (Hoffm.) Floerk. 

 On trees, common. July 4, 1896, no. 93. 



17. Parmelia borreri Turn. 



On trees, common. June 24, 1896, no. 4. 



18. Parmelia borreri Turn. var. hypomela Tuck. 

 On trees, rare. July 4, 1896, no. 74. 



Sterile, hence not quite certain. 



Not previously reported from Minnesota. 



19. Parmelia saxatilis (L.) Fr. 



On trees, frequent. July 4, 1896, no. 79. 



20. Parmelia olivaeea (L.) Ach. 



On trees, especially tamarack, also on old fences and Saint 

 Pecer sandstone, frequent. June 19, 1896, no. 17; July 9, 1896, 

 no. 131. 



21. Parmelia caperata (L.) Ach. 



On trees, common. June 28, 1896, no. 47. 



22. Parmelia eoiispersa (Ehrh.) Ach. 



On granite and Saint Peter sandstone, rare and sterile. July 

 3, 1896, no. 77; July 13, 1896, no. 115. 



23. Physcia speciosa (Wulf., Ach.) Nyl. 



At base of trees, rather rare. July 4, 1896, no. 85. 



