112 IOWA ACADEMY OF SCIENCES. 



NYMPHAEACE.E. 



Nelumho lutea Pers. 



Onawa (B. W.). 

 Nymphaea reniformis D. C. 



Lyon Co. (B. W.). 

 Nuphar aclvena Ait. 



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



PAPAYERACEyE. 



Sanguinaria Canadensis L. 



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



FUMARIACE.E. 



Dicentra cucuUaria D. C. 



Sioux City, abundant in wooded ravines in vegetable mould. 

 Gorydalis ai^rea Willd. 



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



CRUCIFERyE 

 Lepidium Virginkiuii 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.). 

 Gapsella Bursa-pastoris Medic. 



Sioux City (B. W.). 

 Brasssca nigra Koch. 



Sioux City (B. W.). 

 B. Sinapistrum Boiss. 



Sioux City (B. W.). 

 Sismbrium 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. 

 Gardamine hirsuta L. 



Little Rock (C. R. Ball). 

 Arabis, hirsuta Scop. 



Sioux City (B. W.). 



