21 8 GEOLOGICAL SURVEY OF CANADA. 



rocks, Cascades, Gatineau River, Que., June, 1900 ; on rocks in a 

 ravine at Woodstock, New Brunswick, July, 1899; on rocks, 

 Petewawa River, Algonquin Park, Ont., July, 1900. {Macoun.) 

 On rocks. Lake Lindeman, Yukon, 1899. (Williams.) On rocks, 

 Chilliwack Valley, B.C. (/. M. Macoun) 



239. G. rivularis, Nees & Hornsch. 



On rocks near the water-line at Lake Lindeman, Yukon, 1899. 

 {WUliams.) 



240. G. alpicola, Swartz. 



On rocks along Peace River, below the mouth of Smoky River, 

 Oct. 2nd, 1872. Referred in Part VL, p. 64, to G. platyphylla. 



On wet rocks, Petewawa River, Algonquin Park, Ont., July, 

 1900. {Macoun) 



241. G. platyphylla, Mitten. 



On rocks along Jumping Pound Creek, Rocky Mountains, 

 Alta., June, 1897. {Macoun) 



246. G. heterophylla, Kindb. 



G. chloroblasta, Kindb., No. 245 Cat. Can. Musci., 64. 

 On rocks in Roger's Pass, Selkirk Mountains, B.C., July 31st, 

 1890. {Macoun) 



1004. G. pseudo-rivularis, Kindb., Bryol. N. Am. & Eur., 234. 



Differs from G. gracilis. Leaves larger and broader, narrowed 

 to a short-subulate point, patent when dry ; cells less sinuous ; 

 costa, hub-excurrent rough only in the upper part. Capsule oval ; 

 teeth red ; calyptra mitriform. Stem long-decumbent. Tufts 

 green. 



On rocks, Sydenham Falls, Owen Sound, Ont., Sept. nth, 

 1890 ; also on rocks at Ottawa and at Brighton, Northumberland 

 Co., Ont., Oct., 1888 ; on rocks along the Colquitz, near Victoria, 

 Vancouver Island, May 22nd, 1893. {Macoun.) 



Subsp. lancifolia, Kindb., Bryol. N. Am. & Eur., 234. 



Leaves narrower and less acute sometimes with an obsolete 

 rough hairpoint ; costa not excurrent. Stem not long. 



On rocks on Kadiak Island Alaska, Sept., 1891. {J.M. Macoun) 



