118 CHEMISTRY OF PLANT LIFE 



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



H 



H 



>H 



o 



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



I 







H 



O 



Fisetin, found in quebracho wood and fiset wood, 



HO 



JOH 



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

 the skin of onions, 



OH 

 \ 



o 



