100 VIOLACEjE. 



ers. Stipules often deciduous. Peduncle articulated and 

 bibracteolate. 



Etymology. Name from ton, a violet, and eiSos, appearance. 



Geographical Distribution. Chiefly intertropical both in the New and 

 the Old World. In this country one or two species are found as far north 

 as Texas and Arkansas. 



Properties. The roots of numerous species are used medicinally and 

 highly valued in South America, chiefly as emetics. They are known in 

 commerce under the name of While Ipecacuanha; and possess the same 

 properties as the real Ipecacuanha, which they are likewise said closely to 

 resemble in the chemical constitution of their active principles. The roots 

 of our own species doubtless possess the same properties, and might be turn- 

 ed to important account. 



PLATE 82. Ionioium lineare, Torr.; — from Texas, Mr. Wright. 



1. Diagram of the flower. 



2. A flower, with its peduncle, enlarged. 



3. A sepal, enlarged. 



4. The petals displayed, enlarged. 



5. The stamens surrounding the pistil, enlarged. 



6. Inside view of an enlarged stamen, showing the anther. 



7. The pistil and receptacle, enlarged. 



8. A dehiscent pod, and seeds, magnified. 



9. A seed, more magnified. 



