722 MINNESOTA BOTANICAL STUDIES. 



71. Rinodina sophocles (Ach.) Nyl. 



On old boards and granitic rocks, abundant. July 10, 1896, 

 no. 151; July 10, 1896, no. 144; July 3, 1896. no. 81; July 16, 

 L896, no. 188a. 



72. Ki nod ina sopliodes (Ach.) Nyl. var exigua Fr. 



On trees, where the thalline exciple is usually present, but 

 the spores frequently reach 30 in each ascus. Also on dead 

 ■wood, where it is more typical externally, but the spores only 

 10 or 12 in each ascus. Probably infrequent. July 9, 1896, no. 

 123; July 9, 1896, no. 145. 



Not previously reported from Minnesota. 



73. Pertusaria velata (Turn.) Nyl. 



On trees, rare, A single specimen was collected and lost. 



74. Pertusaria communis DC. 



On trees, rare. July 11, 18£6, no. 163b. 

 Not previously reported from Minnesota. 



75. Pertusaria pustulata (Ach.) Nyl. 



On trees, infrequent. July 4, 1896, no. 96; July 18, 1896, no. 

 189. 

 Not previously reported from Minnesota." 



76. Urceolaria scruposa (L. ) Nyl. 



On Saint Peter sandstone, common. July 11, 1896, no. 154. 

 Not previously reported from Minnesota. 



77. Cladonia mitrula Tuck. 



On earth, frequent. June 30, 1896, no. 37. 



78. Cladonia cariosa (Ach.) Spreng. 



On earth at base of stumps, rare. July 31, 1896, no. 230. 



79. Cladonia pyxidata (L.) Fr. 



On earth, common. June 28, 1896, no. 33. 



80. Cladonia fimbriata (L.) Fr. var. tabsrformis Fr. 



On earth and old logs, frequent. June 28, 1896, no. 38. 



81. Cladonia gracilis (L.) Nyl. 



On old stumps, rare. July 31, 1896, no. 228. 



82. Cladonia gracilis (L.) Nyl. var. yerticellata Fr. 



On old stumps, rare. July 31, 1896, no. 205. 



83. Cladonia ca^spiticia (Pers.) Fl. 



On Saint Peter sandstone, frequent. July 11. 1896, no. 156. 

 Not previously reported from Minnesota. 



