IOWA ACADEMY OF SCIENCES. 115 



Ceanothus American/us L. 



Turin, Missouri Valley, loess hills in open, grassy places 

 (L. II. P.); Sioux City (B. W.). 

 C. ovatus Desf. 



Council Bluffs, sides and tops of loess mounds (L. H. P.). 



YITACE^E. 



Vitis riparia Michx. 



Sioux City, valleys between loess mounds in woods (L. H. P.); 

 South Dakota, opposite H&warden (L. H. P.). 

 Ampelopsis quinquefolia Michx. 



Sioux City, in woods; common (B. W.). 



SAPINDACE^. 



Acer dasyearpum Ehrh. 



Sioux City, Hawarden; abundant in alluvial bottoms, along 

 Big Sioux and Missouri rivers (L. H. P.). 

 Negundo aceroldes Moench. 



Sioux City, frequent along streams (B. W.). 

 Staphylea trifolia L. 



Sioux City, in valleys between loess hills (B. W.). 



ANAC ARDIACE.E . 

 Rhus glabra L. 



Sioux City, common border of loess mounds (B. W.) South 

 Dakota, opposite Hawarden (L. H. P.). 

 R. Toxicodendron L. 



Sioux Citv, common in valleys between loess mounds 

 (B. W.). 



POLYGALACE.E. 



Poly gala verlicillata L. 



Sioux City, loess mounds (L. H. P. and B. W.). 



LEGUMINOS-^E. 



lisia leucantha Torr. and Gray. 



Battle Creek, low places, prairie (E. G. Preston), Cherokee 

 (B. W.). 

 Crotalaria sagittal is L. 



Sioux City, bank of Big Sioux river, Cedar Bluffs (B. W.). 

 Trifolium pratense L. 



Sioux City (B. W.). 

 T. stolon if erura Muhl. 



Sioux City (B. W.). 

 T. rcpens L. 



Sioux City (B. W ). 



