PREFACE 



THE present volume, though prepared in 

 manual form, is meant only as a guide to 

 the rich and interesting flora of the Canadian 

 Rockies and Selkirks or those portions 

 traversed by the Canadian Pacific Railway 

 between Banff and Glacier. While many of 

 the plants herein described are found through- 

 out the entire region, yet the species charac- 

 teristic of the two mountain ranges are vastly 

 different. For the most part those of the Rock- 

 ies might be characterised as plants adapted to 

 the withstanding of severe conditions of 

 drouth and cold, being mostly low and tufted, 

 with small surfaces of leaf exposure, either 

 thick and leathery or in many instances 

 with an ample covering of protecting hairs ; 

 while those of the Selkirks, owing to the more 

 humid atmospheric conditions, are essen- 



