448 GEOLOGICAL SURVEY OF CANADA. 



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



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

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

 Saskatchewan to Fort Franklin. {Bichardsmi.) Cypress Hills, N.W.T. 

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

 Columbia valley, Eocky 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 Eocky Mountains to 

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

 Creek, B.C. (Macoun.) 



(2018.) S. Drummondiana, Bai-ratt. 



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

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

 B.C. (Macoun.) 



(2019.) S. fulcrata, var. subglauca, 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 coulees to the south. On the banks of the Colum- 

 bia at Donald, Lat. 51°, B.C. (Macoun.) 



Var. Scouleriana, Bebb. 



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



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

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

 Lat. 51°. (Macoun.) On the Fi-aser at New "Westminster, and 

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



(2021.) S. glauca, Linn. 



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

 Amongst rocks on the Mingan Islands, Q. (St. Oyr.) 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. D. McKay.) 



Var. villosa, Anders. 



S. villosa, Hook. Fl. 11., 144. 



S. glauwps, Anders. DC Prodr. XVP, 281. Macoun's Cat. No. 1649. 



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



