614 PHARMACEUTICAL BOTANY 
tubular florets only, as the Eupatoriums and Burdocks or 
marginal ligulate florets and central tubular florets, as in the 
Sunflower, Chamomiles, etc. The LicutirLor# include those 
Composites whose flower heads possess ligulate florets only, as 
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Fic. 470.—Chicory (Cichorium Intybus). A, portion of flowering branch; B, 
basal leaf (runcinate-pinnatifid); C, median longitudinal section through a head 
showing the insertion of the flowers; D, individual flower; E, fruit (ripened ovary), 
showing the persistent pappus (calyx) of short scales. (Gager.) 
the Dandelions, Hawkweeds, Chicory, Lettuces, etc. They 
contain a bitter or acrid milk juice. 
OrriciAL DruG Part Usep BoTANICAL ORIGIN HABITAT 
Arnica Flower head Arnica montana Europe 
Matricaria Flower head Matricaria Europe and 
Chamomilla western Asia 
Calendula Ligulate florets Calendula officinalis Mediterranean 
basin 
Eupatorium Leaves and Eupatorium North America 
flowering tops perfoliatum 
‘ml 
