CLASSIFICATION OF ANGIOSPERMS. 523 



shaped at the base and with a more or less irregularly undulate 

 margin. All of these species are more or less common in culti- 

 vation in botanical gardens in Europe. 



FIG. 289. Curled dock (Rumex crispus) showing two of the lower, long-petioled, oblong- 

 lanceolate and wavy-margined leaves, and a flowering branch, the upper leaves of which 

 are narrowly-oblong and short-petioled. 



Rumex crispus or curled dock is a perennial herb growing in 

 fields and waste places in the United States and parts of Canada. 



