178 IOWA ACADEMY OF SCIENCES. 



N. palustreJ). G. Union county. Moist places; common. 



N. armoracia Fries. Adams county. Waste places; com- 

 mon. 



Er>/i<imiim ehei rant ho ides L. Decatur county. One specimen 

 found. 



SiHiimbrlnm officUiale Scop. Clarke, Union, Adams, Montgom- 

 ery, Pottawattamie, Ringgold, Taylor, and Fremont counties. 

 A common weed in waste places. 



Bra.ssica nif/ra Koch. Ringgold, Page, Montgomery, and 

 Pottawattamie counties. Fields and waste places; common. 



CapxeUa burm -pastor is Moench. Clarke, Union, and Ringgold 

 counties. A common weed. 



Lepidium virf/iidcum L. Clarke, Adams, and Pottawattamie 

 counties. Waste places; common.. 



Baphanus sativus L. Taylor county. A few escapes. 



Capparidace^. 



Cleome integrifolia T. & G. Fremont county. A common 

 weed in the Missouri river bottoms. 



CiSTACE.E. 



Helianthemum nutias (L.) B. S. P. Union and Taylor counties. 

 Prairies, frequent. We have heretofore listed this as H. cana- 

 dense Mx. Lechea major Mx. of our previous lists is only a form 

 of this species. 



Lechea^ stricta Legget. Johnson county. Listed before as 

 L. minor L. 



VlOLACE.^. 



Viola, palmata L. Fremont county. A few found in low 

 places. 



Yiota (■uvullata Ait. Union, Ringgold, and Pottawattamie 

 counties. Fields and woods; common. 



Viola pubescens Ait. Pottawattamie county. Woods; fre- 

 quent. 



Caryophyllace^. 



Saponaria officinalis L. Ringgold, Taylor, and Fremont 

 counties. Waysides; infrequent. 



Silene stellata Ait. Ringgold, Page, Fremont and Pottawat- 

 tamie counties. Woods; frequent. 



S. noctiflora L. Fremont county. A few found by the way- 

 side. 



