102 MEDICINAL HERBS AND POISONOUS PLANTS 



missed in a few words. As a family the members pro- 

 duce acrid principles, bitter to the taste, and having a 

 somewhat unpleasant smell; they present no temptation 

 as edible plants, even to the most tlioughtless. Thus 

 Toadflax (Linaria vidgaris) is an acrid and poisonous 



Fig. Cl.~T\gwoTi (Scrophulaita nodom) 

 a. Corolla opened, h, Calyx, c, Fruit (capsule). 



plant, but there is no record arainst it. A crystalline 

 bitter .substance called liniarin has been extracted from 

 it, as Avell as two other substances, both of a pungent 

 taste. Again, Lousewort (Fedicularw sylvatica) is ft 

 familiar pasture plant. If taken internally it produces 

 vomiting and purgative effects. Animals eat it only when 



