IOWA ACADEMY OF SCIENCES. 
Plate xii. 
Cnicus muticus. i. head; 2. leaf; 3. portion of stem; 4 . outer bracts; 3. inner bracts; 6 . 
flower from outer row, pappus barbellate; a , achene; 7, style; 8 , anthers; 9, pappus of inner 
flowers. (Charlotte M. King.) 
