COLLECTED IN AKCTIC AMERICA. 193 



^ 



Platysma, Hqffm. Nyh 

 No. 73. P. NivALE, NyL 



Hah, Great Slave Lake. 



In fine fructification. Some of the specimens had the thallus 

 of a more intense yellow colour {^Cetraria Tilesii^ Ach. Sjn. 228). 



No. 74. P. cucuLLATUM, Iloffm, 



Hab, Great Bear Lake. 



In fine fructification. 



No. 75. A form apparently intermediate between nivale and cucullaium, 

 with scrobiculate thallus but sporidia of cucuUatum. 

 Hab. Great Bear Lake. 



In fructification. 



No, 76. P. JUNIPERINUM, NyL 

 Var. ierrestris, Schser. L. H. 20. 

 Hah, Mackenzie's River; Great Bear Lake. 



Not in fructification. 



No. 77' P. JUNIPERINUM, NyL 



Var. pinastri, Ach. 



Hab. Great Slave Lake; York Factory, Hudson's Bay. 



Not in fructification. 



No. 78. P. s^PiNcoLA, Hoffm,y Schcer, L. H. 297. 



Hab, Great Bear Lake ; Great Slave Lake ; York Factory, Hudson's 



Bay. 



No. 79. P. RicHARDSONii (Hook). 

 Hab. Great Bear Lake. 



No. 80. P. LACUNosuMj NyL 



Forma atlantica^ Tuck. L. Am., Sept. 6. 

 Hab, Great Slave Lake. 



Nephromium, Ni/l. 



No. 81. N.TOMENTOSUM,Ay.; Tuck, L.Am, Sept, \3'y Schaer, L. IL259. 

 Hab. Missinnippi or English River; Great Bear Lake. 



No. 82- N. TOMENTOSUM, NyL 



Var. helveticum, NyL; Tuck. L. Am. Sept. 14 ; Schaer. L. H. 260. 

 Hab. Missinnippi or English River. 



Peltigeba, Jloffm. 



No. 83. P. aphthosa, Hoffm. 

 Hab. Great Bear Lake. 



TjTKS. PBGC. BOTAXT, TOL, II. 



