Lichens 11 d 



Caloplaca cerina (Ehrh.) Th. Fr. var. stillicidiorum (Hormen.) Th. Fr. Lich. 

 Scand. p. 174 (1871). 

 In moist places, island southeast of Lady Franklin point, Coronation gulf. 



Caloplaca nivalis (Koerb.) Th. Fr. Lich. Scand. I: p. 191 (1871). 

 Placodium, Tuck. Syn. 

 On old bones, Bernard harbour. 



THELOSCHISTACEAE 



Xanthoria lychnea (Ach.) Th. Fr. Lich. Scand. p. 146 (1871). 

 Theloschistes, Tuck. Syh. 

 On old bones and dead wood in tundra, ColHnson point, Alaska. 



Xanthoria lychnea (Ach.) Th. Fr. var. pygmaea (Bor.) Th. Fr. Lich. Scand. 



p. 146 (1871). 



Theloschistes, Tuck. Syn. 



On driftwood, Spy island, Alaska; tundra. Demarcation point, Alaska; 

 Rae's Mackenzie river, Wollaston peninsula; driftwood, Collinson point, Alaska; 

 on big boulder in tundra, Camden bay, Alaska. 



BUELLIACEAE 



Buellia spuria (Schaer.) Koerb. Parerg. Lich. p. 183 (1860). 



On rocks, 500-foot hill, 30 miles inland from Camden bay, Alaska. 



Buellia alpicola (Wahl.) Kremp. Lich. Fl. Bayern. p. 200 (1861). 

 On rocks, small island near Richardson islands. Coronation gulf. 



Buellia papillata (Sommerf.) Tuck. Syn. II: p. 94 (1888). 



Tundra, Young point; over mosses, Uloksak's island, Bernard harbour. 



Buellia myriocarpa (DC.) Mudd. Man. p. 217 (1861). 



On driftwood and logs, Collinson point, Alaska; Spy island, Alaskan arctic 

 coast. 



Rinodina exigua (Ach.) Th. Fr. Lich. Scand. I: p. 201 (1871). 

 On dead branches of trees, Coppermine river. 



Rinodina turfacea (Wahl.) Th. Fr. Arctoi, p. 126 (1861). 



Tundra, Bernard harbour; in moist places, island southeast of Lady Frank- 

 lin point, Coronation gulf; on old bones, Bernard harbour and Young point. 



PHYSCIACEAE 



Physcia pulverulenta (Schreb.) Nyl. Syn. I: p. 419 (1860). 



On driftwood, Collinson point, Alaska; same support. Young point. 



Physcia pulverulenta (Schreb.) Nyl. var. muscigena (Ach.) Nyl. Syn. I: p. 

 420 (1860). 

 Over mosses, mouth of Rae's Mackenzie river, Wollaston peninsula. 



Physcia tenella (Scop.) Nyl. forma leptalea (Ach.) Lynge.Norweg.Physciaceae,. 

 p. 43(1916). 



Physcia hispida, Tuck. Syn. 

 On old bones. Young point. 



Physcia tribacia (Ach.) Tuck. Syn. 1: p. 75 (1884). 

 On boulders, Bernard harbour. 



