30 GEOLOGICAL AND NATURAL HISTORY SURVEY OF CANADA. 



home.} Along the Athabasca Eiver, JS".W.T. (J. M. Macoun.} 

 Greenland. (Fl. 0r.) 



Var. brevirostre, Kindb. 



Belleville, Ont. ; and Macleod's Lake, B.C. (Macoun.') 



(103.) D. Muehlenbeckii, Bruch & Schimp.; Lesq. & James, 

 Mosses of N. America, 72; Canadian Musci, "No. 481. 



On Laurentian rocks at Shannonville, near Belleville, Ont, 1865 ; on 

 earth at Morley, and on rocks at Hector, Rocky Mountains ; on logs, 

 Roger's Pass, Selkirk Mountains, 1885; on earth at Cache Creek, and 

 Blackwater River, B.C., 1875. (Macoun.) On the slopes of Mount 

 Queest, Gold Range, B.C., alt., 5,000 feet, 1889. (J. M. Macoun.} On 

 old logs, Craigellachie, 1889 ; woods between St. John and Dun vegan, 

 Peace River, 1872. (Macoun.') Smith's Sound. (Dr. Kane.} 



(104.) D. brevifolium, Lindb. Musci Scand., 24; Greenland Flora 

 392. 



Godhavn, Greenland. (Fl. Gr.) Digges Island, Hudson Bay. (R. 

 Bell.) 



(105.) D. Canadense, Kindb., Bull. Torr. Bot. Club, Yol. XYII, 87 



Size robust. Habit of D. majus, Turn., or D. Drummondii. Stem 

 radiculose. Leaves indistinctly undulate, long-acuminate, denticulate 

 at the acumen ; inner basal cells hyaline, the alar orange, the other 

 cells sublinear and porose ; costa smooth or slightly rough, not 

 excurrent, broad at the base, narrow above. Capsule short, beaked, 

 curved, finally costate and blackish. 



Nearly allied to D. subpalustre, C.M. & Kindb.. but the leaves are 

 more gradually narrowed, also the perichetial ones, and very much 

 longer ; costa broader at the base. 



On earth in woods at Moodyville, Burrard Inlet, B.C., April 19th, 

 1889. (Macoun.*) 



(106.) D. leucobasis, C. M. & Kindb. (n. sp.) 



Dioecious. Stem very tomentose, 3-4 cm. high. Leaves green, cris- 

 pate or falcate, faintly sinuose-undulate, narrowly ovate-lanceolate, 

 gradually tapering into a subuliform denticulate, often brittle, point ; 

 alar cells fugitive, rectangular, small and yellow, the other lower cells 



