134 IOWA ACADEMY OF 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 sfeUata .Desf. 

 Sioux City (B. W.). 

 Uvularia grancUflora Smith. 



Sioux City (B. W.). 

 Erythronium albidum Nutt. 



Sioux City (B. W.). 

 Lilium Philadelphicum L. 



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

 L. Canadense L. 



Sioux City (B. W.). 

 Trillium nivale Riddell. 

 Cherokee (B. W.). 

 Zygadenus elegans Pursh. 



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



COMMELINACE^. 



Tradescantia Virginica L. 



Sioux City (B. W.). 



JUNCACE.E. 



Juncus tenuis Willd. 



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

 J. nodosus. 



Sioux City (B. W.). 



TYPHACE^. 

 TypUa latifolia L. 



Sioux City (B. W.). 

 SjKirganium eurycarpum Engelm. 



ARACE.E. 



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

 Arisaema tripyldlum Torr. 

 Sioux City (B. W.). 



ALISMACE^. 



Alisma plantago L. 



Sioux City (B. W.). 

 Echinodorus rostratus Nutt. 



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



