124 Annals of the Carnegie Museum. 



Family: ACAROSPORACE^. 



70. Maronea constans (Nyl.) Th. Fr. Edwards Island, L. Superior; 



Thunder Cape. 



Family: LECIDEACE^. 



71. Rhizocarpon obscuratum (Ach.) Krb. Porphyry Island, L. 



Superior. Dr. Hasse writes "species believed to be new to this 

 country." 



72. Rhizocarpon geminatum (Flot.) Krb. Porphyry Island and Little 



Fluor Island, L. Superior. 



73. Lecidea parasema Ach. Porphyry Island, L. Superior. The 



example represents the variety achrista (Sommf.) Hasse, in litt. 



74. Lecidea lapicida (Ach.) Arn. Porphyry Island, L. Superior. 



Group: COLL EMM. 

 Family: COLLEMACE^. 



75. Collema vespertilio (Light.) Wain, Rabbit Mt.,« fifteen miles west 



of Ft. William. 



76. Leptogiiini Hildebrandii (Garov.) Nyl. Tee Bay, Thunder Cave. 



This plant was determined by Dr. Riddle. 



Order: PYRENOCARPALES. 



Family: DERMATOCARPONACE^. 



77. Dermatocarpon fiuviatile (Weis.) Th. Br. Porphyry Island and 



Little Fluor Island, L. Superior. 



78. Dermatocarpon miniatum (L.) Mann. Porphyry Island, L. Su- 



perior. The example represents the variety complicatum (Sw.) 

 Zahlbr. 



Thoreau Museum of Natural History, 

 Concord, Massachusetts. 



