198 GEOLOGICAL SURVEY OF CANADA. 



amongst boulders at Lake Lindeman, Yukon, 1899. {Williams.) 

 On rock, Chilliwack Valley, B.C., 1901. (/ M. Macoun.) 



105. D. Canadense, Kindb. 



On earth in wet woods at Baddeck, Margaree and Half Way- 

 Brook, Cape Breton Island, N.S., 1898. Rather common and with 

 the general appearance of the species but the capsule always 

 single. On old logs at Belleville, Ont., May 26th, 1874 ; on earth 

 in woods. White Trout Lake Algonquin Park, Ont., 1900. 

 {Macotin.) On rotten logs at Edmonton. Ont., Sept., 1892. 

 {Jas. White.) 



911. D. camptophyUum, Kindb., Bryol. N. Am. & Eur. p. 193. 



Leaves tapering to a long subulate point, in the upper half of the 

 acumen strongly serrate, falcate and not crisped when dry; cells 

 not porose ; those of the acumen subquadrate, the alar cells 

 yellow, dilated, subrectangular, reaching to the costa; other basal 

 cells long. Perichetial leaves obtusate or abruptly tapering to a 

 generally longer, narrow-subulate or subfiliform awn with a long- 

 excurrent costa. Capsule solitary, not sulcate. Tufts green 

 above. 



Clearwater Lake, northern Labrador, July 21st, 1896. (A. P. 

 Low.) 



Var. poriferum, Kindb. 



On old logs along Bragg's Creek, Elbow River, Rocky Moun- 

 tains, Alta., June 22nd, 1897. (Macoun.) 



918. D. algidum, Kindb., Revue Bryol. 1896. 



Leaves entire, nearly straight and suberect, only the upper 

 flexuous, narrower than in D. fuscesceiis ; angular cells nearly 

 uniform dilated ; other cells very porose, and generally long; 

 costa very narrow, nearly smooth at the back or slightly rough in 

 the excurrent part. Tufts soft and silky, green or dark green, 

 nearly eradiculose. Capsules unknown. Habit of D. spadiceutn; 

 differs from it principally in not having convolute leaves. 



On damp rocks, Lake Agnes, Rocky Mountains, Alta., Aug. 

 19th, 1891, alt. 7,500 feet. {Macoun.) 



