IOWA ACADEMY OF SCIENCES. Ill 



Lychnis githago Lam. "Winneshiek Co. Waste places, infre- 

 quent. 



Arenai'ia lateriflora L. Winneshiek Co. 



Stellaria media Smith. Winneshiek -Co. 



S. lonigfolia Muhl. Winneshiek Co. 



Cerastium arvense L. Winneshiek Co. 



C. nutans Raf. Winneshiek and Allamakee Cos. 



PORTULACACE^. 



Portulaca oleracea L. Winneshiek, Allamakee, Clayton and 

 Scott Cos. Fields and waste places, common. 



Claytonia virginica L. Winneshiek Co. Woods, frequent. 



HYPERICACE^. 



Hypericum ascyron L. Winneshiek, Allamakee and Clayton 

 Cos. Prairie and upland woods, infrequent. 



H. cistifoUum Lam. Dubuque Co. Along the railway, fre- 

 quent. 



H. maculatum Walt. Winneshiek Co. Woods and open 

 places, frequent. 



MALVACE^. 



Maiva crispa L. Winneshiek Co. One. specimen noted. 



M. rotundifolia L. Winneshiek, . Allamakee, Clayton, 

 Dubuque and Jackson Cos. Waste places near dwellings, 

 common. 



Napcea dioica L. Winneshiek and Allamakee Cos. Frequent 

 in the valley of the Upper Iowa river. 



Abutilon avicennce Gaertn. Winneshiek and Allamakee 

 Cos. Fields and waste places, frequent. 



TILIACE^. 



Tiliaamericana'L.< Winneshiek, Allamakee, Clayton, Dubuque 

 and Scott Cos. Rich woods, common. 



LINACE.E. 



Linum sulcatum Riddell. Allamakee Co. Prairies, frequent. 

 L. usitatissimum L. Clayton and Dubuque Cos. Waste places 

 along railway, infrequent. 



