14 FLORA OF THE MIAMI VALLEY. 



RUTACE^— The Rue Family. 



ZANTHOXYLUM. Golden. 

 Z. Americanum, Mil. Prickly Ash. 



PTELEA. L.~ 

 P. trifoliata, L. Hop-lree. 



ANACARDIACE^— The Sumac Family. 



RHUS. L. 

 R. typhina, L. Staghorn Sumac. 

 R. glabra, L. Smooth Sumac. 

 R. venenata, DC. Poison Sumac. 

 R. Toxicodendron, L. Poison Ivy. 

 R. aromatica, i\it. Fragrant Sumac. 



VITACEi^E— The Vine Family. 



VITIS, TouRN. 

 V. Labrusca, L. Northern Fox Grape. 

 V. aestivalis, Michx. Summer Grape. 

 V. cordifolia, Michx. Frost Grape. 



AMPELOPSIS, Michx. 

 A. quinquefolia, Michx. American Ivy. 



RHAMNACE^— The Buckthorn Family. 



FRANGULA, Tourn. 

 F. Caroliniana, Gray. Alder Buckthorn. 



