stantly associated with the roots of the plant. It is believed 

 that the two plants grow together to the mutual advantage 

 of each, the fungus assisting the Arnica to obtain nourish- 

 ment from the soil, and in return receiving from it some of 

 the organic matter manufactured from the air with the help 

 of light. The root has a bitter aromatic taste. From it is 

 made the tincture of Arnica, which is often applied to 

 bruises, apparently, however, without any very considerable 

 influence upon them. 



Several other Alpine plants, the Doronicum and Aronics, 

 for example, have bright yellow flower-heads like the Arnica, 

 but as no similar Alpine plant has pairs of opposite leaves 

 on the flower-stem, the recognition of the Arnica becomes 

 a very simple matter. 



49 



