10 D Canadian Arctic Expedition, 1913-18 



Dactylina arctica (Hook.) Nyl. Syn. I: p. 286 (1860). 

 Cetraria, Tuck. Syh. 

 On earth, small island, Camden bay, Alaska; also at Bernard harbour. 



Alectoria ochroleuca (Ehrh.) Nyl. prod. p. 47 (1857). 



On dead branches of living white spruce, Coppermine river; on earth, 

 Bernard harbour. 



Alectoria chalybeiformis (L.) Gray Nat. Arr. I: p. 408 (1821). 

 Alectoria jubata chalybeiformis, Tuck. Syn. 

 On dead branches of living white spruce, Coppermine river. 



Alectoria nigricans (Ach.) Nyl. Lich. Scand. p.' 71 (1861). 

 On earth, 30 miles inland from Camden bay, Alaska. 



Usnea ceratina Ach. Lich. Univ. p. 610 (1810). 



On dead branches of living white spruce, Coppermine river. 



Thamnolia vermicularis (Sw.) In Linn. fil. Method. Muscorump. 119 (1781). 

 On earth, 30 miles inland from Camden bay, Alaska; Bernard harbour. 



CALOPLACACEAE 



Blastenia ferruginea (Huds.) Koerb. Syst. Lich. Germ. p. 184 (1855). 

 Placodium, Tuck. Syn. 

 On driftwood, Spy island, Alaska, and Collinson point, Alaska. 



Blastenia ferruginea (Huds.) Kocrb. var. pollinii Mass. Sched. Crit. p. 57 



(1855). 



Placodium, Tuck. Syn. 



On rocks, Bernard harbour; on rocks, 50 miles inland from Camden bay, 

 Alaska. 



Caloplaca miniatum (Hoffm.) 



Lichen miniatus Hoffm. Enum. 62 (1784). 



Caloplaca murorum miniatum (Hoffm.) Th. Fr. Lich. Scand. I: 170 (1871). 



Placodium miniatum Hoffm. Darbishire, Sec. Arct. Exp. of the Fram, p. 30 

 (1911). 



On rocks, Richardson island, Coronation gulf; Bernard harbour; Chantry 

 island, Bernard harbour; Dolphin and Union strait; 30 miles inland from 

 Camden bay, Alaska; on beach pebbles, sand spit of Hulahula river, Alaska; 

 near Murray point, Wollaston peninsula; Ic}' reef, Alaskan arctic coast. 



Caloplaca elegans (Link) Th. Fr. Lich. Scand. p. 168 (1871). 



Placodium, Tuck. Syn. 



On boulders, Bernard harbour; top of cliff, mouth of Rae's Mackenzie river, 

 Wollaston land; on dolomite. Lady Franklin point, Wollaston land; on rocks, 

 Coronation gulf. 



Caloplaca elegans (Link) Th. Fr. var. tenuis (Wahl.) Th. Fr. Lich. Scand. p. 

 168 (1871). 

 On rocks, Bernard harbour; on dolomite, Dolphin and Union strait. 



Caloplaca jungermanniae (Vahl.) Th. Fr. Lich. Scand. p. 179 (1871). 

 Placodium, Tuck. Syn. 

 Over mosses, Ross point, Wollaston land. 



Caloplaca cerina (Ehrh.) Th. Fr. Arctoi, p. 118 (1860). 

 Placodium, Tuck. Syn. 

 On old bones. Icy reef, Alaskan arctic coast. 



