LIST OF ILLUSTRATIONS 



Larger Blue Flag . 



Pickerel-weed 



Liverwort and Purple Violet 



Wild Lupine .... 



Bluets and Bird's-foot Violet 



Fringed and Closed Gentians 



Viper's Bugloss 



Robin's Plantain and Blue Vervain 



Iron-weed and Self-heal 



Frontispiece 



FACING PAGE 



4 

 i6 



20 

 28 

 32 

 38 

 40 

 46 



ERRATUM 



The captions under the plates of the Hyssop Skull- 

 cap and the Monkey-flower, facing page 56, should be 

 transposed. 



