CLASSIFICATION OF ANGIOSPERMS. 



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Winter's bark is derived from Driniys Wintcri, a shrub of 

 South America. It occurs in quills which are from 5 to 10 mm. 

 thick; externally it is grayish-brown and covered with numerous 

 lichens ; the fracture is short, the broken surface being marked 

 by stone cells and resin canals; the odor is fragrant; taste aro- 

 matic, pungent and bitter. The drug contains a volatile oil which 

 consists essentially of a hydrocarbon known as winterin; it also 

 contains a resin. 



A crystalline principle magnolin, a glucoside and a volatile 

 oil are found in Magnolia macro phylla (or cucumber-tree of the 



Fig. 144. Tulip poplar (Liriodendron tulipifera) : A, branch with characteristic 

 4- to 6-lobed leaves and solitary, large, tulip-like flower; B, fruit composed of a number of 

 carpels; C, tip of branch showing the large coherent stipules which serve to protect the 

 leaf-buds (p. io6). 



Southern States) and M. tripetala or umbrella tree growing 

 southward from Pennsylvania. A bitter principle liriodendrin, a 

 volatile oil, an alkaloid, and a glucoside are found in the tulip 

 poplar or tulip tree. 



The bitter and aromatic bark of Michelia montana of Java is 

 used like cascarilla (Euphorbiaceae). A bitter resin is found in 

 the fruit of Talauma Plumieri of the Antilles. 



A glucoside which dissolves the blood corpuscles is found in 

 Talauma macrocarpa of Mexico. A red coloring principle soluble 

 in water occurs in the leaves of Michelia tsiampaca of Java. The 

 fruits of Schisandra propinqua of Nepal and Kadsura Rox- 



