112 IOWA ACADEMY OF SCIENCES. 



a NYMPHAEACE^. 



Nelwmbo /"tea Pers. 



Onawa (B. W.). 

 Nymphaea reniformis D. C. 



Lyon Co. (B. W.). 

 NupJiar advena Ait. 



Sioux township Lyon Co., northwest corner of state (B. W.) 



PAPAVERACE^. 



Sanguinaria Canadensis L. 



Sioux City. Wooded ravines (B. W.). 



FUMARIACE^E. 



Dicentra cucullaria D. C. 



Sioux City, abundant in wooded ravines in vegetable mould. 

 Coi-ydalis aurea Willd. 



Sioux City, borders of woods, common (B. W.). 



CRUCIFER^E 



Lepidium Virginicum L. 



Sioux City, waste places abundant (B W. ) 

 L. apetalum Willd. 



Not represented by specimens though abundant on mounds, 

 fields and pastures in western Iowa (L. H. P.). 

 Capsella Bursa-pastoris Medic. 



Sioux City (B. W.). 

 Brasssca nigra Koch. 



Sioux City (B. W.). 

 B. Sinapistrum Boiss. 



Sioux City (B. W.). 

 Slsmbrium officinale Scop. 



Sioux City (B. W.); Battle Creek (E. G. Preston); Little 

 Rock (C. R. Ball); roadside weed. 

 S. canescens, Nutt. 



Sioux City (B. W.). 

 Erysimum cTu iranthoides L. 



Sioux City, rich soil, river bottoms (B. W.). 

 Nasturtium terrestre R. Br. 



Sioux City (B. W.) low grounds; borders of ponds and 

 streao 

 Cardamine hirsuta L. 



Little Rock (C. R. Ball). 

 Arabis, hirsuta Scop. 



ux City (B. W.i. 



