(368) 



Bryum argenteum L. Belt River; Columbia Falls, June 



14 (84). 

 Bryum caespiticium L. Little Prickly-pear Canon ; Essex, 



G. N. Ry., Aug. 17 (10). 



Bryum capillarc L. Highwood Mts. ; Lower Falls of 

 Missouri R., July (71). 



Bryum obconicum Hornsch. Two-medicine Lake, Aug. 

 These specimens have a very slender capsule up to 5 mm. 

 long and spores up to .021 mm. (393). 



Bryum capitellatum C. M. & K. Big Badger Cr., Two- 

 medicine Lake, Essex, Columbia Falls, in rather old fruit, 

 Oct. 17, 5,000 ft. A fine species originally described from 

 sterile plants. It is dioicous, growing in very soft tufts 

 densely felted together with radicles. The leaves above are 

 broadly ovate to obovate, the upper and perichaetial, except 

 the small inner, abruptly terminating in a short hair point 

 more or less reflexed and twisted when dry. The middle and 

 lower leaves are concave, without point, often nearly round, 

 the very lowest small and ecostate. The peristome is that of 

 a well developed Eubryum, the capsule much like caespiticium 

 in size and shape. Spores smooth, up to .013 mm. (338). 



Bryum Duvalii Voit. Columbia Falls, on low, damp 

 ground under heavy timber, sterile. Two-medicine Lake 

 and Divide Cr., Blackfeet Ind. Reservation, July 14 (374). 



Bryum vcntricosum Dicks. Columbia Falls, Macdonald 

 Lake, Aug. (280, 336). 



Bryum turbinatum (Hedw.) Schwaegr. Belt Mts., Sept. ; 

 Essex, G. N. Ry., Aug. (340, 103, 146). Tall, sterile speci- 

 mens growing in spring apparently belong here (429). 



Mnium Roellii Brotherus. Belt Mts., 5,000 ft. ; Columbia 

 Falls, 4,000 to 5,000 ft., July (60). 



Mnium cuspidatum (L.) Leyss. Columbia Falls, June 

 (281). 



Mnium vcnustum Mitt. Columbia Falls, June (212). 



Mnium medium Br. & Sch. Columbia Falls, May (282). 



Mnium Drummondii Bry. Eur. Columbia Falls, June. 

 The dioicous form (302). 



