IV PREFACE. 



tii»iis in tl»o KtX'kv Mtnintains lias made many vmIuuMo adciil ions to the 

 flora of llial roi^jion. In British Coliiiul>ia, Mr. .lames I'MeU-her, of 

 Ottawa, lias collei'ti'd on Vanconvor Island ami in llic valleys of tho 

 Krnser and Thompson rivers; while Mr. Cowloy and J. A. Hill, C.E., 

 liave favoiiivd me with tnany intei-esting" plants from various parts of 

 that provinre. 



Speeial thanks are iluo to Thomas Median, Esq., State Botanist of 

 Pennsylvaiua, tor an e.xtensive manusei-ipt list of the species collected 

 bv him on the British Columbian and Alaskan coasts, duriny; the sum 

 nier of 18S8. This list is a valuable atldition to oui' knowledge of the 

 west coast floi-a. 



It is ])roj)osed to continue the present work until all known species of 

 Canadian plants are catalojj;ued, and their geographical i-ange recorded, 

 and the writer earnestly invites all botanical students within the 

 Dominion to assist in this necessary work. The next part will com- 

 jilete the exogens, and to this an addendum will h<S attached bringing 

 our knowledge of the foi'Cgoing parts up to date. 



JOHN MACOUK 



