148 



Capiioides aiireum, (Willd.) Kuntze. Golden Corydalis. 



Corydalis aurea, Willd.. 

 In light soil in the Minnesota and Sioux valleys, and 



in the Black Hills. It was collected along a railroad 



embankment, and was possibly introduced from farther 



east. 

 Capnoidea curvisiliquin, (Englm.) Kuntze. Curved- 



fruited Corydalis. 



Corydalis curvisiliqua, Englm. 

 Common in the Black Hills. 



. Mustard Family. 



Stanleya piunata, (Pursh.) Britton. Stanleya. 

 On dry prairies in the Black Hills region. 

 Lepidium virgiiiicum, L. Wild Pepper-grass. 



A weed in fields and roadsides in the Minnesota and 

 Sioux valleys. 



Lepidium apetalum, Willd. Apetalous Pepper-grass. 

 Lepidium intermedium, Gray. 



A very abundant weed in cultivated fields and waste 

 places from the Missouri river eastward. 

 Lepidium iiicisuiii, Roth. Cut-leaved Pepper-grass. 

 Occurs rarely in the Black Hills. 



Thalaspi arveiise, L. Field Pepper-grass. 



Sparingly introduced in the Sioux valley near Sioux 

 Falls. Doubtless introduced from Manitoba, where it is 

 a troublesome weed. 



Sisymbrium oflicinale, (L.) Scop. Hedge Mustard. 



A common weed in waste places from the Missouri 

 river eastward. 



Sisymbrium altissimum, L. Tumbling Mustard. 



A common and troublesome weed in the Minnesota 

 valley, doubtless introduced from Assinoboia. 

 BraHHica iiigra, (L.) Kocb. Black Mustard. 



A common introduced weed in waste places. 



