118 CHEMISTRY OF PLANT LIFE 



Apigenin, found in parsley and celery, as the glucoside apiin, 



XX 



HO/V 



XOH 



HO 







Campferol, found in Java indigo, as the glucoside campferitrin, 



/\ 



OH 



HO 



o 



Fisetin, found in quebracho wood and fiset wood, 



OH 



Ho/yVir 



JOH 



o 



Quercitrin, found in oak bark, horse-chestnut flowers, and in 

 the skin of onions, 



OH 



OH 



HO 



O 



