118 IOWA ACADEMY OF SCIENCES. 



ROSACE.K. 



Prunus Americana Marshall. 



Council Bluffs, loess in valleys between mounds. South 

 Dakota, opposibe Hawarden formiog thickets at the base 

 of hills (L. H. P.), Sloux City (B. W.) the species forms 

 dense thickets in western Iowa, fruit small. 

 P. Virginiana L. 



Logan, in valleys betiveen hills. Sioux City (B. W); the 

 species occurs in thickets mostly small shrubs. 

 Ruhus strigosus Michx. 



Sioux City, rare (B. W.). 

 P. occidoifaUs L. 



Sioux City, not common (B. W.). 

 Geum alburn Gmelin. 



Logan, in woods (L. H. P.); Sioux City (B. W.). 

 Fragaria Virginiana Mill. var. lUinoensis Gray. 



Sioux City (B. W.). 

 Potentilla arguta Pursh. 



Hull (W. Newell); Battle Creek, (E. G. Prestonj; Little 

 Rock, (Herb. C. R. Ball); Sioux City (B. W.). Tne 

 species is frequent in dry places ia wastern Iowa, loess 

 mounds. 

 P. Norveglca L. 



Hull (W. Newellj; Little Rock (C. R. Bill); Rock Valley, 

 (J. F. Jensen and W. Newell); Sioux City (B. W.). 

 Var. millelegrana Watson. 



Sioux City (B. W.). 

 Rosa Arkansana Porter. 

 Hull (M. Newell). 



SAXIFRAGACE.E. 



HeucJiera liispkla Pursh. 

 Sioux City (B. W.). 

 Ribes gracile Michx. 



Sioux City, in woods (B. W.) C juncil Bluffs, loess in woods 

 (L. H. P.). 

 R. floridum L'Her. 



Sioux City, in woods (L. H. P.); South Dakota, opposite 

 Hawarden in woods, valleys and between hills. 



CRASSULACEyE. 



Penthorum sedoldes L. 



Hull (W. Ntwell); Sioux City (B. W.). 



