(36o) 



Grimmia elatior Bruch. Falls of Tenderfoot Cr., Belt 

 Mts., Oct. 24; Bad-rock Canon, Columbia Falls. Stems 

 2y 2 to 5 cm. high. Capsule exserted on a pedicel about 3 

 mm. long, more or less horizontal, ribbed, somewhat trun- 

 cate at base. Hair point rough. Leaves more or less papil- 

 lose, bistratose above with borders of 4 or 5 thicknesses of 

 cells. 



Grimmia torquata Hornsch. Neihart, Belt Mts., 5,000 

 ft. ; Columbia Falls, 3,500 ft. (188). 



Grimmia oralis (Hedw.) Lindb. Belt Mts., Columbia 

 Falls, common, July-Sept. (264). 



Grimmia calyptrata Hook. Lower Sand Coulee, Co- 

 lumbia Falls, April (33). 



Grimmia commutata Hueben. Columbia Falls (308). 



Grimmia montana Bry. Eur. Columbia Falls, June (244). 



Grimmia tcnerrima Ren. & Card. Head of Macdonald 

 Lake, 5,000 ft. ; Flat-top Craig, 6,000-7,000 ft. and Two- 

 medicine Lake, Blackfeet Ind. Reserv., July. Leaf-cells 

 above sometimes mamillose on both faces. The leaves are 

 rather shorter and broader than in alfestris with the vein dis- 

 tinct at base (.055 mm. wide) and of about the same width 

 up to the middle. The leaves diminish in size below as in 

 alpcstris (332). 



Grimmia Briltoniae R. S. Williams, Bull. Torr. Club, 27 : 

 316, June 25, 1900. Bad-rock Canon, Flat-head River, 

 3,300 ft. (223). 



Grimmia tenuicaulis R. S. Williams, 1. c. Neihart, 5,000 

 ft. (139). 



Grimmia patens (Dicks.) Br. & Sch. Macdonald Lake; 

 Columbia Falls, May 7 (192). 



Grimmia acicularis (L.) C. M. Macdonald Lake; Aug. 



3 (3ii)- 



Grimmia microcardia (Hedw.) C. M. Essex. G. N. Ry., 



7,000 ft. ; Macdonald Lake and Avalanche Basin, Aug. (312). 

 Grimmia hctcrosticha (Hedw.) C. M. Columbia Falls, 

 May ; Macdonald Lake (184). A more slender form is per- 

 haps var. alof crura (424). 



