IOWA ACADEMY OF SCIENCES. 183 



AmpMcarjma monoica Nutt. Page county. Dry woods; 

 frequent. 



A. intcheri T. & G. Page and Pottawattamie counties. 

 Woods; frequent. 



Gercis canadensis L. Fremont county. Frequent. 



Cassia marylandica L Ringgold, Page, and Fremont coun- 

 ties. Rich lowlands; frequent; in some localities forming 

 thickets; found also in Otoe and Cass counties, Nebraska. 



('. chama'crista L. Ringgold, Page, Taylor, Fremont, Mont- 

 gomery, and Pottawattamie counties; waste places; common. 



Gymnodadus canadinsis Lam. Fremont and Pottawattamie 

 counties; low woods; infrequent. 



GledetscMa triacanthos L. Adams, Ringgold, Taylor, Page, 

 and Fremont counties. 



Desmanthus bracJtylobus Benth. Fremont county; foot of loess 

 hills and bottoms of the river; common. 



Rosace.^. 



Prunus amencana Marsh. Clarke, Union, Adams, Taylor, 

 and Pottawattamie counties; thickets; common. 



L\ sertina. Ehrh. Union, Adams, Montgomery, Pattawatta- 

 mie, Ringgold, Page, Taylor, and Fremont counties; woods: 

 frequent. 



P. virginiana L. Clarke, Adams, and Pottawattamie counties; 

 low woods; frequent. 



Sjnrcea salicifoUa L. Taylor and Page counties; waysides; 

 infrequent. 



liubus occidentalis L. Clarke, Ringgold, Fremont, and Pot- 

 tawattamie counties; waysides, thickets; frequent. 



Pi. villosus Ait. Union, Ringgold, and Fremont counties: open 

 woods; frequent. 



Geum album Gmelin. Ringgold, Page, and Pottawattamie 

 counties. 



PotenWIa arguta Pursh. Ringgold county; prairies; common. 



P. norvegica L. Ringgold county; fields; common, 



Agrimonia eupatoria L. Ringgold, and Fremont counties; 

 open woods; common. 



A parviflora Ait. Page and Ringgold counties: low prairies: 

 frequent. 



Bosa arkansana Porter. Clarke, Union, Adams, Montgomery, 

 Pottawattamie, Ringgold, Page, and Fremont counties: prairies: 

 common. 



