OF THE FORTY-NINTH PARALLEL OE LATITUDE. 23 



W. longicolla, (Bryum) Sw. 

 Hab. Cascade Mountains, Lyall. 



W. albicans, Wahl. 



Hab. Galton Mountains, Lyall. 



W. Ludwigii, (Bryum) Spreng. 

 Hab. Cascade Mountains, Lyall. 



W. pyriformis {Linn.). 



Hab. Saskatchewan and Rocky Mountains, Bourgeau ; Cascade Moun- 

 tains, Lyall. 



Bryum, Dill. 

 B. arcticum, (Pohlia) Brown. 

 Hab. Rocky Mountains, Bourgeau. 



B, purpura scens, (Pohlia) Brown. 

 Hab. Rocky Mountains, Bourgeau. 



B. uliginosum, B. et S. 



Hab. Rocky Mountains, Bourgeau. 



B. Brownii, B. et S. 



Hab. Rocky Mountains, Bourgeau. 



B. c^espiticium, Linn. 



Hab. Saskatchewan, Bourgeau ; Pack River, Cascade Mountains, Kettle 

 Falls, and Galton Mountains, Lyall. 



B. pallescens, Schleich. 

 Hab. Cascade Mountains, Lyall. 



B. bimum, Schreb. 



Hab. Saskatchewan and Rocky Mountains, Bourgeau ; Fort Colville and 

 Galton Mountains, Lyall. 



B. PSEUDOTRIQUETRUM, Hedw. 



Hab. Rocky Mountains, Bourgeau; Fort Colville and Galton Moun- 

 tains, Lyall. 

 B. Duvalii, Voit. 

 Hab. Fort Colville, Lyall. 



B. turbinatum, Hedw. 



Hab. Galton Mountains, Lyall. 



B. capillare, Linn. 



Hab. Vancouver Island, Pack River, and Galton Mountains, Lyall. 



B. argenteum, Linn. 



Hab. Rocky Mountains, Bourgeau. 



OKTHOTBICHACE.E, Mitten. 



Orthotrichum, Hediv. 

 O. pallens, Bruch. 

 Hab. Pack River, British Columbia, Lyall. 



