IOWA ACADEMY OF SCIENCES. 131 



P. dumetorum L., var. scandens Gray. 

 Sioux City (B. W.). 



ARISTOLOCHIACE.E. 



Asarum Canadense L. 



Cherokee (B. W.). 



EL.EAGXACE.E. 



Sheplierdia argentea Nutt. 



Sicux City, sandy banks of Missouri river (B. W., L. H. 

 P., Hitchcock, Bot. Gazette, XIV, 128). 



EUPHORBIACE.E. 



Euphorbia maculate. L. 



Missouri Valiey, Des Moines, Turin and Onawa; waste 

 places and along railroad (L. H. P.). 

 E. hypericifolla. 



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

 E. marginata Pursh. 



South Dakota, opposite Hawarden, hills, Missouri Valley, 

 Turin and in waste places (L. H. P.), Hull (W. Newell), 

 Council Bluffs (L. H. P.), Sioux City (B. W. 5 L. H. P.). 

 E. corollata L. 



Missouri Valiey (L. H. P.), Sioux City (B. W.). 

 E. serpens H. B. K. 



Missouri Valley, low grounds (L. H. P.). 

 E. serpyllifoUa Pers. 



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

 Var. con sa ngu I n ea. 



Onawa, Tu-in (L. H. P.). 

 E. glyptosperma Engelm. 



Missouri Valley (L. H. P.). 

 Var. pubescens. 



Turin (L. H. P.). 

 E. hexarjona Nutt. 



Missouri Valley (L. H. P.), Sioux City (B. W.). 

 E. Geyeri Engelm. 



Missouri Valiey (L. H. P.) 

 E. heterophylla L. 



Sioux Ci y, in woods, Council Bluffs (L. H. P.); Sioux City 

 (B. W ). 

 E. obtumta Push. 



Sioux City (B. W.). 

 Acalypha Virginica L. 



Sioux City (B. W.) 



