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IOWA ACADEMY OP SCIENCES. 
TILIACE^. 
Tilia Americana L. 
Sioux City. Turin, Missouri Valley, Council Bluffs, ravines 
between loess mounds (L. H. P.); back of mounds an 
abundant tree. 
LINAGES. 
Linum sulcatum Biddell. 
Sioux City, top and sides of loess mounds, prairies (L. H. 
P.), (B. W.); Little Rock (C. R. Ball). 
L. rigidum Pursli. 
Sioux City, loess mounds, capsules and old stems only 
found by myself (L. H. P.); Hamburg (Hitchcock, Bot. 
Gazette, XIV, 128). 
GERANIACEAC. 
Oxalis violacece L. 
Sioux City, in woods frequent (B. W.); Little Rock (Herb. 
C. R. Ball). 
0. corniculata L. var. stricta Sav. 
Turin, Onawa, in woods and fields abundant (L. H. P.); 
Sioux City (B. W.). 
Im%)atiens pallida Nutt. 
Sioux City, in woods along streams (B. 1/Y.). 
1. Fulva Nutt. 
Sioux City, in woods along streams (B. W.). 
RUTACE^. 
Xanthoxylum Americanum Nutt. 
Sioux City, common in woods (B. W.); South Dakota, oppo- 
site Hawarden, in valleys between hilis (L, H. P.). 
CELASTRxVCE^. 
Celastrus scandens L. 
Sioux City, common in woods between loess mounds (B. W. 
and L. H. P.). 
Euonymus atropurpureus Jacq. 
Sioux City, in woods between loess mounds (B. W'., L. H. P.); 
South Dakota, opposite Hawarden (L. H. P.). 
RHAMNACE^. 
Fhamnus lanccolata Pursh. 
Logan, low hills in woods (L. H. P.), Sioux City, level 
woodland near the Big Sioux river (B. W.). 
