(370) 



Aulacomnium androgynum (L.) Schwaegr. Belt Mts., 

 Columbia Falls, common, July (39). 



Aulacomnium -palustre (L.) Schwaegr. Belt Mts., High- 

 wood Mts., Columbia Falls, common, July (67). 



Timmia mega-politana Hedw. Belt Mts., Great Falls, 

 Columbia Falls, May. Flowers of this species occur with 

 antheridia clustered at one side of the archegonia wholly 

 without intervening leaves and with pedicels of the antheridia 

 varying from \ to as long as the antheridia. 



Timmia cucullata Michx. Columbia Falls, June (37 2 )« 

 (A note on this species has been published in Revue Bryolo- 

 gique, 28 : 1. 1901.) 



Timmia Austriaca Hedw. Belt Mts., Columbia Falls, 

 June (59). 



Catharinea Selwyni (Aust.) E. G. Britton. June, High- 

 wood Mts., Belt Mts., Essex., G. N. Ry. (116). 



Oligotrichum Lyallii Lindb. Two-medicine Lake, Black- 

 feet Ind. Reserv. ; Essex, Great Northern Ry. ; Columbia 

 Falls, 7,000 ft. (213). 



Pogonatum urnigerum (L.) P. Beauv. Stanton Lake, G. 

 N. Ry. (252). 



Pogonatum alfiinum Roehl. Belt Mts., Columbia Falls, 

 June (117). 



Polytrichum gracilc Dicks. Head of Macdonald Lake. 

 These specimens are slender and elongated with rather long 

 capsules (319)- 



Polytrichum filiferum Schreb. Belt Mts., Columbia 

 Falls, June (101). 



Polytrichum junipcrinum Willd. Belt Mts., Columbia 

 Falls, Aug. (21). A low form on mountain ridges, 7,000 ft., 

 is var. alpinum (431). 



Polytrichum strictum Banks. Belt Mts., Columbia Falls, 

 June (102). • 



Polytrichum commune L. Neihart, Belt Mts., 6,000 ft., 

 Sept. ; Macdonald Lake (215). 



Duxbaumia indusiata Brid. Yellow Mt., Blackfeet Ind. 

 Reserv. ; Columbia Falls, June 14 (190). 



