112 IOWA ACADEMY OF SCIENCES. 



GERANIACE^. 



Geranium maculatum L. Winneshiek, Allamakee and Clay- 

 ton Cos. Rich woods, frequent. 



Oxalis violacea L. Winneshiek Co. Fields, common. 



0. corniculata L. , var. stricta Sav. Winneshiek, Allamakee, 

 Clayton, Dubuque, and Clinton Cos. Fields and woods, com- 

 mon. 



Jmpatiens pallida Nutt. Winneshiek and Clayton Cos. Rich 

 soil along streams, common. 



/. fulva Nutt. Winneshiek and Allamakee Cos. With the pre- 

 ceding. 



RUTACE^. 



Xanthoxy'um americana Mill. Winneshiek, Allamakee, Clay- 

 ton, and Dubuque Cos. Woods, frequent. 



Ptelea trifoliata L. Rock Island Arsenal grounds. 



CELASTRACE^. 



Euonymus atropurpureus Jacq. Winneshiek and Allamakee 

 Cos. Upland woods, frequent. 



RHAMNACE^. 



Geanothus americanus L. Winneshiek, Allamakee, Clayton, 

 Dubuque, and Jackson Cos. Woods, frequent. 



VITACE.E. 



Vitis riparia Mx. Winneshiek, Allamakee, Clayton, Dubuque, 

 and Jackson Cos. Woods, common. 



Ampelopsis quinquefolia Mx. Winneshiek, Clayton, and 

 Dubuque Cos. Woods, common. 



SAPINDACE^. 



Acer spicatum Lam. Clayton Co. Bluifs, infrequent. Speci- 

 men sent by Prof. B. Fink. 



A. saccharinum Wang. Winneshiek, Allamakee, Clayton, and 

 Dubuque Cos. Frequent along rivers in rolling woods. 



A. dasycarpum Ehrh. Winneshiek, Allamakee, Clayton, and 

 Dubuque Cos. Low grounds, common. 



Negunao aceroides Moench. Winneshiek, Allamakee, Clayton, 

 Dubuque, and Clinton Cos. Low grounds, common 



