B. Corolla purple, purplish, pink, or white. 

 C. Corolla 1.0 - 2.5 cm. broad. 



D. Leaves ovate to ovate-lanceolate, 



denticulate. G. 21, B. 38. Hesperis * 



I®. I-eaves "broadly ovate, coarsely dentate; 



earliest opposite. G. 27, B. 21. Lunar i a . 

 DDD. leaves lyrate* G. 14, B. 15, RaPhanus . 



DDDD, Leaves pinnately divided* G.3Q',Bl9. Cardamine . 



sp. pratensis * 

 GC. Corolla less than 1 cm. broad (rarely absent). 



D. Stems scapose, scapes 2.5 - 8.0 cm. tall. 



G. 1, B. 30. Draba (bx>4ld 

 sp. verna . 

 DD. Cauline leaves pinnate* G.3O, B.19. Cardamine * 

 DDD. Cauline leaves, or most of them, subentire 

 or entire. 



E. Cauline leaves all or part claspiflg* 

 ^. Cauline leaves few, the upper 

 ones clasping; leaves densely 

 st ell at e-pube sc ent . 

 G.lO, B.27. CaPsellaC Bursa ). 

 PI". Cauline leaves usually 

 numerous. 



G. Cauline leaves usually 

 densely pubescent* 



