-5- 

 DD. CQ)ro)lla yellow 



E, Corolla 2-6 mm* "broad* 



E. Leaves lanceolate or llnear- 

 oblanceolate, entire or 

 toothed* G»22, B.34. 

 Erysimum* 

 PP. Leaves pinnatifid. 



Cr» Plant usually slender, 

 in dry soil; corolla 

 §ram» broad. G.19, B.9. 

 Sisvm"brivun . 

 S£)» Qifficinale* 

 GG. Plant large, in 



marshes and near 

 streams; corolla 4-6 

 mm* broad* G.23, B.18. 

 Radic^j la ( Roripa ) . 

 sp* palustris . 

 EE. Corolla 6-10: nim* Toroad* 



P* Basal and lower cauline leaves 

 Ijroad, often lyrate; stem 

 terete* G«15, B.13, Br as sic a * 

 PP. Basal and lower cauline leaves 

 smaller, interrupted-pinnate; 

 stem angled* G.24, B,16. 



Bar "b area. 



