Preface vii 



the latter with fewer and very different 

 species. Some plants, however, like the White 

 Mountain Avens (Dryas octopetala), the 

 Butterwort (Pinguicula vulgaris), the Moss 

 Campion (Silene acaulis), the Mountain 

 Cranberry (Vitis-id&a) and the Low Gran- 

 berry (Oxycoccus) , the One-flowered Winter- 

 green (M oneses uniflora) , the Forget-me-not 

 (Myosotis alpestris) and others are found 

 on both sides of the Atlantic, yet we have 

 no such array of Primroses or Gentians as 

 our European brothers, though both genera 

 are represented with us, while on the other 

 hand they can boast of nothing comparable 

 to our Indian Paint Brush, found throughout 

 the region on the river-shores and bars during 

 late June and early July and later through 

 the summer in its innumerable forms and 

 colours in the moist alpine meadows and 

 slopes. 



The ferns and their allies with the more 

 striking of the trees and shrubs have been in- 

 cluded in the present work, together with the 



