-3- 



H. Leaves usually 

 hoary- pubescent ; 

 hairs simple} e^^^f*^ 

 G.7, B.4. 

 Lepidiu m* 

 sp. campestre * 

 EH. Leaves usually 



rough-puTDescent , 

 green; some hairs 

 conspicuously 

 iDraachedi, Gr«31, 

 B. 33, ArabiiB. 

 SP» hirsuta . 

 GrG. Cauline leaves glabrous 

 or nearly so. 

 H.>ist"il slender, 

 flattened. G.31, 

 B.33. Arabis . 

 HH. Pistiil short, 

 broad, flat. 

 G.6, B.6. Thlaspi . 

 EE. Cauline leaves petioled or merely 

 sessile* 



I*. Cauline leaves mostly small, 



glabrous or nearly so; hairs, 

 if any, simple* G.7, B.4. 

 Lepidium. 



