692 



SCIENTIFIC AND APPLIED PHARMACOGNOSY 



camphor and isoalantolacton; a bitter principle; mucilage; inulenin; 

 and pseudoinulin. 



Adulteration. Through carelessness, belladonna root is some- 

 times substituted for inula. The former is characterized in contain- 



FIG. 305. Burdock (Arctium Lappa) showing large basal leaf, a flowering branch, 

 and at the lower left-hand corner a few of the burs on which a bat has been 

 caught and apparently held until it died. 



ing starch and having a distinct heavy odor (see Belladonnas Radix). 



LAPPA. Burdock. The root of Arctium Lappa and of other 



species of Arctium (Fam. Compositse), biennial herbs (Fig. 305) 



indigenous to Europe and northern Asia, and naturalized in waste 



