114 IOWA ACADEMY OF SCIENCES. 



TILIACE^E. 



Tilm Americana L. 



Sioux City, Turin, Missouri Valley, Council Bluffs, ravines 

 between loess mounds (L. H. P.); back of mounds an 

 abundant tree. 



LINACEiE. 



Li a a nt sulcatum Riddell. 



Sioux City, top and sides of loess mounds, prairies (L. H. 

 P.), (B. W.); Little Rock (C. R. Ball). 

 L. rigid/u/m Pursh. 



Sioux City, loess mounds, capsules and old stems only 

 found by myself (L. H. P.); Hamburg (Hitchcock, Bot. 

 Gazette, XIV, 128). 



GERANIACE^. 



Oxalis violacece L. 



Sioux City, in woods frequent (B. W.); Little Rock (Herb. 



C. R. Ball). 

 O. corniculata L. var. stricta Sav. 



Turin, Onawa, in woods and fields abundant (L. H. P.); 



Sioux City (B. W.). 

 Impatiens pallida Nutt. 



Sioux City, in woods alocg streams (B. W.). 

 L Fulva Nutt. 



Sioux City, in woods along streams (B. W.). 



RUTACE^E. 



Xanthoxylum Americanum Nutt. 



Sioux City, common in woods (B. W.); South Dakota, oppo- 

 site Hawarden, in valleys between hilis (L. H. P.). 



CELASTRACE.E. 



Celastrus scandens L. 



Sioux City, common in woods between loess mounds (B. W. 

 andL. H. P.). 

 Euonymu8 atropurpureus Jacq. 



Sioux City, in woods between loess mounds (B. W., L. H. P.); 

 South Dakota, opposite Hawarden (L. H. P.). 



KIIAMNACE.K. 



Ehamnus lanceolata Pursh. 



Logan, low hills in woods (L. H. P.), Sioux City, level 

 woodland near the Big Sioux river (B..W.). 



