CLASSIFICATION OF ANGIOSPERMS. 605 



ical characters of which closely resem])le those of R. Piwshianus 

 The bark of this plant is also official. 



Fig. 333. A Cascara tree on University of Washington campus.— .vncr jonnson and 

 Hindman, Amer. Jour. Pharvi., 1914, p. 389. 



The leaves of the shrub known as Xew Jersey Tea {Ccanothus 

 amcricanus) are said to have been used as a substitute for tea 

 during the Revolutionary times. This plant is found in the East- 



