Appendix. gi 



Zanthoxylum Americanum, Mill. 

 Ptelea trifoliata, L. Along railroad. 



ANACARDIACE^E. 

 Rhus typhina, L. 



Rhus glabra, L. 

 Rhus venenata, D. C. 

 Rhus Toxicodendram, L. 

 Rhus Aromatica, L. 



Vitis aestivalis, Michx. 



Vitis cordifolia, Michx. Geol. Survey, 1860. 



Ampelopsis quinquefolia, Michx. 



RHAMNACE^E. 



Rhamnus alnifolins, L. Her. 

 Ceanothus Americanus, L. 



CELASTRACE^E. 



Celastrus scandens, L. 



Etionymus atropurpurens, Jacq. Exterminated. 



Euonymus Americanus L., var abovatus, Torr and Gray. 



SAPINDACE^E. 



Staphylea trifolia, L. 

 Acer saccharinum, Wang. 



Acer saccharinum var nigrum. Not common, Prof. M. W. 

 Harrington. 



Acer dasycarpum, Ehrhart. 

 Acer rubrum, L. 



POLYGALACE^E. 



Polygala san guinea, L. 



Polygala verticillata, L. 



Polygala Senega, L. 



Palygala polygama, Walt. Have not been seen since 1871. 



Polygala pancifolia. Willd, Tamarack swamps. 



