Pink : LICHENS OF THE lake superior region. 255 



93. Leptogium myochroum (Eiirii., Schaer.) Tuck. var. 

 tomentosum Sciiaer. 



On trees, rare. Tofte (Carlton peak), July 10, 1897, no. 559. 

 Not previously reported from Minnesota. 



94. Placodium elegans (Link.) DC. 



On rocks, common. Grand Portage, June 21, 1897, no. 69. 

 Grand Portage island, June 23, 1897, nos. 93 and 98. Gun- 

 flint, June 30, 1897, no. 294, and July i, 1897, no. 328. Mis- 

 quah hills, July 5, 1897, no. 444. Palisades, July 15, 1897, 

 no. 747. Snowbank lake area, July 22, 1897, no. 887, no. 

 444, looking toward the next in having orange-red apothecia. 



95. Placodium murorum (Hoffm.) DC. 



On rocks, rare. Misquah hills, July 5, 1897, no. 450. 

 Not previously reported from Minnesota. 



96. Placodium murorum (Hoffm.) DC. var. miniatum Tuck. 

 On rocks, rare. Sterile. Grand Portage, June 23, 1897, no. 88. 

 Not previously reported from Minnesota. 



97. Placodium cinnabarinum (Ach.) Anz. 



On rocks, common at the one locality. Gunflint, July 2, 

 no. 378. 



98. Placodium citrinum (Hoffm.) Leight. 



On rocks, infrequent. No. 68 well fruited but with thallus 

 nearly obsolete in some specimens. Grand Portage island, 

 June 21, 1897, no. 68. Grand Portage, June 23, 1897, no. 117. 

 Misquah hills, July 5, 1897, no. 461. 



99. Placodium aurantiacum (Lightf.) Naeg. and Hepp. 



On rocks, rare at first locality, frequent at second. Grand 

 Portage island, June 23, 1897, no. 127. Gunflint, June 30, 

 1897. nos. 296 and 298, and July 2, 1897, no. 389. Beaver 

 Bay, July 13, 1897, no. 661. No. 296 with a white thallus and 

 otherwise not typical, but I can ptace it nowhere else. 



100. Placodium cerinum (Hedw.) Naeg. and Hepp. 



On trees, frequent. Grand Portage, June 23, 1897, no. 84. 

 Gunflint, June 30, 1897, no. 253, and July 2, 1897, no. 392. 

 Beaver Bay, July 13, 1897, no. 669, 



loi. Placodium cerinum (Hedw.) Naeg. and Hepp. var. pyra- 



cea Nyl. 



On old wood, common locally. Beaver Bay, July 13, 1897, 

 no. 682. 



