(36i) 



Grimmia fascicularis (Schrad.) C. M. Head of Mac- 



donald Lake, Aug. (313). 



Grimmia ramulosa Lindb. Head of Macdonald Lake, 

 Aug. 3 (367). 



Grimmia canesccns (Timm) CM. Neihart (111). 



Grimmia canesccns ericoides (Web.) C. M. Columbia 

 Falls (368). 



Grimmia canesccns stricta (Schleich.). Flat-top Craig, 

 7,000 ft., Blackfeet Ind. Reserv. A variety growing in com- 

 pact tufts with closely imbricated, broader leaves (425). 



Hcdzvigia albicans (Web.) Lindb. Belt Mts., Columbia 

 Falls, July 18 (187). 



Ptychomitrhim Gardneri Lesq. On slide rock, Oct. 10, 

 near Columbia Falls (309). 



Amphidium Lapponicum (Hedw.) Schimp. Belt Mts., 

 Columbia Falls; Macdonald Lake, Aug., Sept. (50). 



Orthotrichum anomalum Hedw. Belt Mts., Sand Coulee, 

 June (3). 



Orthotrichum cupulatum Hoffm. Belt Mts., June; Sand 

 Coulee; Forty-mile Cr., Blackfeet Ind. Reservation, Aug. 



(45). 



Orthotrichum urnigerum Myrin. Columbia Falls, May 



(247). These specimens do not show a preperistome and all 



the plates of the teeth are striate in various directions, not 



partly papillose near the middle of the teeth, otherwise they 



seem to agree quite well with European specimens. The 



capsule is 16-striate, peristome double, stomata immersed. 



The variations in the teeth may be owing to the unfavorable 



conditions in which the specimens undoubtedly matured the 



fruit. 



Orthotrichum alpestre Hornsch. Sand Coulee, May 30, 

 on rock. Little Badger Cr., on rock, and South Two-medi- 

 cine River, on wood (96). 



Orthotrichum pumilum S wartz. Missouri River near Great 

 Falls, on bark of Box-elder, April 1 (52). 



Orthotrichum speciosum Nees. Tenderfoot Cr., Belt Mts., 

 Sept., on dead timber, specimens pale and slender. Colum- 



