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 stellata Desf. 

 Sioux City (B. W.). 

 Uvularia grandiflora 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.). 

 Trillin in nivale Riddell. 

 Cherokee (B. W.). 

 Zygadenus elegans Pursh. 



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



COMMELIN ACE^E . 



Ti'odescantia 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^E. 



T a pi t(i latifolia L. 



Sioux City (B. W.). 

 Sparganium eurycarpn/m Engelm. 



ARACE^E. 



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

 Arisaema tripyhllum Torr. 

 Sioux City (B. W.). 



ALISMACE^E. 



Ali&ma plantago L. 



Sioux City (B. W.). 

 Echinodorus rostratus Nutt. 



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



