448 GEOLOGICAL SURVEY OP CANADA. 



(2017.) S. desertorum, Rich. Prairie Willow. 



On gravel bars along Jupiter River, Anticosti ; on the summit of 

 Mount Albert, Shickshock Mountains, Gaspe. (Macoun.) From the 

 Saskatchewan to Fort Franklin. (Richardson.) Cypress Hills, N.W.T. 

 (J. M. Macoun.~) Eastern summit of the North Kootanie Pass and 

 Columbia valley, Rocky Mountains. (Dawson.) Very abundant from the 

 South Saskatchewan westward, more especially in the foot-hills on dry 

 slopes, at Calgary and Morley, and through the Rocky Mountains to 

 the Columbia valley at Donald, Lat. 51 ; also at Clinton above Cache 

 Creek, B.C. (Macoun.) 



(2018.) S. Drummondiana, Barratt. 



Marshes and prairies, of the Rocky Mountains, Lat. 52-56. (Drum- 

 mond.) On the beds of snow-slides, summit of the Selkirk Mountains, 

 B.C. (Macoun.) 



(2019.) S. fulcrata, var. Sllbglauca, Anders. DC. Prod. XVr, 244. 

 N. W. America. (Seeman.) Nushagak, Alaska. (C. L. McKay} 



(2020.) S flavescens, Nutt. 



In ravines, Cypress Hills, N.W.T. (J. M. Macoun.} It is quite 

 probable that this species, which becomes a small tree, may be found 

 in many of the deep couldes to the south. On the banks of the Colum- 

 bia at Donald, Lat. 51, B.C. (Macoun.} 



Var. Scouleriana, Bebb. 



Scovleriana, Barratt. Hook. Fl. II., 145. 



Common from Lat. 49 on the Pacific coast to Kodiak, Alaska. 

 (Bebb.) Through the Rocky Mountains to Columbia valley at Donald, 

 Lat. 51. (Macoun.) On the Fraser at New Westminster, and 

 at Cache Creek, B.C. (Macoun.) Nicola valley, B.C. (Dawson.) 



(2021.) S. glauca, Linn. 



Damp places. Nachvak and Ford's Harbor, Labrador. (R. Bell.) 

 Amongst rocks on the Mingan Islands, Q. (St. Cyr.) At Salt Lake, 

 Anticosti. (Macoun.) Lake Mistassini, N. E. T., Lat. 51. (J. M. 

 Macoun.) Cape Espenberg and Chamisso Island. (Rothr. Alask.) 

 Nushagak, Alaska. (C. L. McKay.} 



Var. villosa, Anders. 



S. villosa, Hook. Fl. II., 144. 



S. glaucops, Anders. DC. Prodr. XVI-, 281. Macoun's Cat. No. 1649. 



Rocky Mountains, Lat. 52-56, thence to the Arctic Sea, also Fort 



