76 B 



Canadian Arctic Expedition, 1913-18 



With respect to the vegetation covering the arctic coast, explored by the 

 expedition, the arctic element is by far the most predominant. It is^indeed 

 readily to be seen that of the 230 species collected not less than 84 are circum- 

 polar; these are as follows: 



micro- 



The Gramineae and Cyperaceae are the best represented, each by 9 species ; 

 then follow the Caryophyllaceae and Saxifragaceae each with 7, the Cruciferae 

 with 6, the Compositae with only 5, the Rosaceae with 4, etc. 



By comparing the species found in the region explored by the expedition 

 with those reported from Spitzbergen by Nathorst, Andersson and Hesselman 

 (I.e.), it will be seen that 84 species are common to both, and of these 59 are 

 among the circumpolar ones. On the other hand the flora of Spitzbergen con- 

 tains 40 species which are absent from the region visited by the expedition: 

 these species are as follows : 



