112 IOWA ACADEMY OF SCIENCES. 



NYMPHAEACE.E. 



Nelurribo lutea Pers. * 



Onawa (B. W.). 

 Nymphaea reniformis D. C. 



Lyon Co. (B. W.). 

 Nuphar advena Ait. 



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



PAPAVERACE.E. 



Sanguinaria Canadensis L. 



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



FUMARIACE.E. 



Dicentra cucuUaria D. C. 



Sioux City, abundant in wooded ravines in vegetable mould. 

 CorydaUs aiirea Willd. 



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



CRUCIFER.-E 

 Lepidium Virginkum L. 



Sioux City, waste places abundant (B W. ) 

 L. apetaluni Willd. 



Not represented by specimens though abundant on mounds, 

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

 Gapsella Bnrsa-pastoris Medic. 



Sioux City (B. W.). 

 Brasssca nigra Koch. 



Sioux City (B. W.). 

 B. Sinapistrum Boiss. 



Sioux City (B. W.). 

 Sismhrium 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 cheiranthoides L. 



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

 Nasturtium terrestre R. Br. 



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

 streams. 

 Cardamine hirsuta L. 



Little Rock (C. R. Ball). 

 Arabis, hirsuta Scop. 



Sioux City (B. W.). 



