IOWA ACADEMY OF SCIENCES. 131 



P. dumetorum L., var. scandens Gray. 

 Sioux City (B. W.). 



ARISTOLOCHIAGE.E. 



Asarum Canadense L. 

 Cherokee (B. W.). 



EL.^^AGNACE^. 



Shepherdia argentea Nutt. 



Sioux City, sandy banks of Missouri river (B. Yf. , L. H. 

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



EUPHORBIACE.E. 



EuphorMa maculata L. 



Missouri Valley, Des Moines, Turin and Onawa; w^ste 

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

 E. hypericifolia. 



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

 E. marginata Pursh. 



South Dakota, opposite Hawarden. hills, Missouii Valley, 

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

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

 E. coroUata L. 



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

 E. serpens H. B. K. 



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

 E. serpijllifolia Pers. 



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

 Var. consanguinea. 



Oaawa, Turin (L. H. P.). 

 E. glyptosperma Engelm. 



Missouri Valley (L. H. P.). 

 Var. imbescens. 



Turin (L. H. P.). 

 E. hexagona Nuit. 



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

 E. Geyeri'En.gelm.. 



Missouri Valley (L. H. P.) 

 E. heterophylla L. 



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

 (B. W ). 

 E. obtusata Push. 



Sioux City (B. W.). 

 Acalyplia Virginica L. 



Sioux City (B. W.) 



