112 
IOWA ACADEMY OF SCIENCES. 
NYMPHAEACE^. 
Nelumbo 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^. 
Sanguinaria Canadensis L. 
Sioux City. Wooded ravines (B. W.). 
PUMARIACE^. • 
Dicentra cucullaria D. C. 
Sioux City, abundant in wooded ravines in vegetable mould. 
Corydalis Willd. 
Sioux City, borders of woods, common (B. W.). 
CRUCIFERS 
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-p>astoris Medic. 
Sioux City (B. W.). 
Brasssca nigra Koch. 
Sioux City (B. W.). 
B. Sinapistrum Boiss. 
Sioux City (B. W.). 
Sisnibrium 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 cJieiranthoides 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.). 
