List of Plates. 



Plate I. A ravine near St. Paul, where sliade-loving plants make 

 their home. From a photograph by Dr. Francis 

 Ramaley Frontispiece. 



Plate II. In the black oak country. Near the Chisago lakes. From 



a photograph by Dr. Francis Ramaley 248 



Plate III. Pond with lilies. Ramsey county. Around it are growing 

 oaks, willows, sumacs and blue flags, milkweeds and 

 smartweeds. From a photograph by Williams 312 



Plate IV. Roadside vegetation near St. Paul. The most conspicu- 

 ous plants are hemp, wormwood, squirrel-tail grass and 

 daisies. From a photograph by Dr. Francis Ramaley... 456 



