110 IOWA ACADEMY OF SCIENCES. 



S. officinale Scop. Winneshiek, Allamakee, Clayton, and 

 Dubuque Cos. Waste places, common. 



S. altissimum L. Allamakee, Clayton, and Dubuque Cos. Fre- 

 quent in waste places along or near railways. 



Brassica sinapistrum Boiss. Winneshiek Co. Waste places, 

 frequentj 



B. nigra Koch. Winneshiek, Allamakee, Clayton, and 

 Dubuque Cos. Fields and waste places, common. 



Capsella hursa-pastoris Moench. Winneshiek Co. Waste 

 places, common. 



L. epidium intermedium Gray. Winneshiek, Allamakee, Clay- 

 ton, Dubuque, Jackson, Clinton and Scott Cos. Waste places, 

 common. 



CAPPARIDACE^. 



Polanisia trachysperma T. & G. Winneshiek, Allamakee, 

 Clayton, Dubuque and Jackson Cos. Sandy soil along water- 

 ways, common. 



CISTACE^. 



Helianthemum canadense Mx. Winneshiek and Allamakee 

 Cos. Prairies, frequent. 



VIOLACE^. 



Viola pedata L. Winneshiek Co. Open places, frequent. 



V. palmata L., var. cucuUata Gray. Winneshiek, Allamakee, 

 Dubuque, Clinton and Scott Cos. Fields and woods, common. 



V. pubescens Ait. Winneshiek, Allamakee and Scott Cos. 

 Woods, common. 



V. canina L., var. muhlenbergii Gray. Winneshiek and Alla- 

 makee Cos. Damp woods, infrequent. 



CARYOPHYLLACE^. 



Saponaria officinalis L. Winneshiek and Allamakee Cos. 

 Waste places. A frequent escape. 



S. vaccaria L. Winneshiek Co. Waste places, infrequent. 



SUene stellata Ait. Winneshiek and Allamakee Cos. Woods, 

 frequent. 



S. nivea Otth. Winneshiek and Allamakee Cos. Along river 

 infrequent. 



S antirrhina L. Winneshiek Co. Fields, frequent. 



