8 D Canadian Arctic Expedition, 1913-18 



Lecanora frustulosa (Dicks) Ach. Lich. Univ. p. 405 (1810). 

 On dolomite, Sutton island, Dolphin and Union strait. 

 Thallus degraded and apothecia discoloured. 



Lecanora epibryon Ach. Syn. p. 155 (1814). 



On mosses in tundra. Demarcation point, Alaska, and over mosses, Bernard 

 harbour. 



Lecanora umbrina (Ehrh.) Nyl. BuU. Soc. Bot. XIII: p. 369 (1866). 

 On driftwood. Spy island, Alaskan arctic coast. 



Lecanora Hageni Ach. Lich. Univ. p. 367 (1810). 



On old bone, Bernard harbour; same substratum. Icy reef, Alaskan arctic 

 coast; on driftwood, Spy island, Alaskan arctic coast. 



Lecanora subfusca (L.) Nyl. Emend. Flora p. 250, note 2 (1872). 

 On old bones. Young point. 



Lecanora cinerea (Ach.) Sommerf. Suppl. Fl. Lapp. p. 99 (1826). 

 On stones, 50 miles inland from Camden bay, Alaska. 



Lecanora gibbosa (Ach.) Nyl. Lapp. Orient, p. 137 (1867). 



On beach pebbles, Richardson island, Coronation gulf; on rocks, 50 miles 

 inland from Camden bay, Alaska. 



Lecanora verrucosa (Ach.) Laur. Teste Nyl. Scand. p. 159. 

 On stones, Bernard harbour. 



Ochrolechia tartarea (L.) Mass. Ricerche, p. 30 (1852). 



Lecanora, Tuck. Syn. 



On earth and over mosses, Ross point, Wollaston peninsula; Young 

 point; on mosses, small island at entrance to Bernard harbour. 



Candelariella vitellina (Ach.) Mull. Bull. Herb. Boiss. II: append. 47 (1894). 

 Placodium Tuck. Syn. 

 On stones, Bernard harbour. 



Candelariella cerinella (Flk.) Zahl. Engler and Prantl, Pflanzenf., p. 207 

 (1907). 



Placodium vitellinum aurellum Tuck. Syn. 

 Caloplaca subsimilis Th. Fr. Lich. Scand. 

 Gyalolechia subsimilis Koerb. Syst. Lich. Germ. 

 On old bones. Young point. 



PARMELIACEAE 



Parmelia physodes (L.) Ach. Method. Lich. p. 250 (1803). 

 On dead branches of living white spruce, Coppermine river. 



Parmelia physodes (L.) Ach. forma fuscescens Cromb. Grevill. XV: p. 75 



(1887). 



On dead branches of Hving white spruce, Sandstone rapids, Coppermine 

 river. 



Parmelia physodes (L.) Ach. var. vittata Ach. Syn. p. 218 (1814). 

 CoUinson point, Alaska. 



Parmelia fraudans Nyl. Scand. p. 100 (1861). 

 On boulders in tundra, Camden bay, Alaska. 



Parmelia saxatilis (L.) Ach. Method. Lich. p. 204 (1803). 



Tundra, Bernard harbour; on mosses, Uloksak's island, Bernard harbour; 

 on big boulders in tundra, Camden bay, Alaska. 



