134 IOWA ACADEMY OP SCIENCES. 



not occur on the east slopes of the mounds, perhaps 

 because they are more or less wooded about Council 

 Bluffs and Missouri Valley. Sioux City (B. W.), Hitch- 

 cock Bot. Gazette, XIV, p. 128. 

 Polygonatum giganteum Dietr. 



Sioux City (B. W., L. H. P. observations). Deep rich 

 woods. 

 Smilacina stellata Desf. 

 Sioux City (B. W.). 

 Uvularia grancliflora Smith. 



Sioux City (B. W.). 

 ErytJironium albidum Nutt. 



Sioux City (B. W.). 

 Lilium Philadelpldcum L. 



Little Rock (Herb., C. R. Ball). 

 L. Canadenm L. 



Sioux City (B. W.). 

 Trillium nivale Riddell. 

 Cherokee {B. W.). 

 Zygadenus elegans Pursh. 



Little Rock (Herb., C. R. Ball). 



COMMELINACE.E. 

 Tradescantia Virginica L. 



Sioux City (B. W.). * 



JUNCACE^. 

 Juncus tenuis Willd. 



Sioux City (B. W., L. H. P. observations). 

 J. nodosus. 



Sioux City (B. W.). 



TYPHACE^. 

 Tijpha latifoUa L. 



Sioux City (B. W.). 

 Sparganium eurycarpum Engelm. 



ARACE.E. 



Dickinson Co. (Hitchcock); Hull (W. Newell). 

 Arisaema tripyJiUum Torr. 

 Sioux City (B. W.). 



ALISMACE.E. 



Alisma plantago L. 



Sioux City (B. W.). 

 Ecliinodorus rostratus Nutt. 



Sioux City, Big Sioux river (L. H. P.). 



