THE POLYTRICHACEZ OF WESTERN NORTH AMERICA 289 
—On soil.—Port Clarence, and near Nome, Alaska; St. Paul and 
St. Matthew islands in Bering Sea, Alaska; Klondike River in 
Yukon Territory; Labrador; Greenland; Scandinavian Peninsula; 
Siberia. 

Fig. 9. Psilopilum glabratum. 
= Dry plant, X 1. 2 = Moist plant with capsule, X 1. 3 = Capsule, X 5. 
4 = Peristome, X 150. 5 = Leaf showing incurved margins and lamelle on upper 
side, X 15. 6 = Leaf-tip, muticous, keeled, X 65. 7 = Cross section of leaf, X 65. 
8 = Cross section of a few lamella, X 250. 
1 
BARTRAMIOPSIS Kindb. 
Bartramia is another genus of mosses, opsis = looking like; hence 
looking like Bartramia. | 
Plants dioicous, blackish-green to brown. Stems slender, 2—8 
cm. high, simple or dichotomous above, with rhizoids at base. 
