CRUCIFER^ 21 



6". strictissimum^ L., leaves entire or glandular-dentate ; 

 S. Columnce^ Jacq. {prientahy L.), river-sides, Lugano; 

 and 6*. altissimum, L., with pale yellow flowers and very 

 spreading sepals. Also 6*. supinuntj L. [Braya supina, 

 Koch), with very small white flowers solitary in the 

 axils of the leaves ; and ^S. piyinatifidum, DC. (Braya 

 pinnatifida, Koch), with spotted sepals ; in rocky places ; 

 Pyrenees, Dauphiny, and Southern Switzerland. S. Sina- 

 pistrum^ Crntz. {pannonicum^ Jacq.), closely resembles 

 officinale^ with longer pods. 



9. Braya, Sternb. 



Seed - vessel nodose, cylindrical ; leaves undivided ; 

 flowers small, white ; seeds in two rows. 



B. alpinaj Sternb.; stem 1-3 in. high; raceme very short 

 and crowded ; Alps, Carinthia, rare. B. pinnata^ Sternb. ; 

 leaves linear-lanceolate, entire or with a very few teeth, 

 flxwers crowded, corymbose, violet when dry ; very rare ; 

 Tirol, Carinthia (Gross-Glockner). 



10. HUGUENINIA, Rchb. 



Seed-vessel cyHndrical, 2-edged; leaves pinnatifid; 

 flowers yellow. 



H. tanacetifolia, Rchb. {Sisymbrium tanacetifolium^ 

 L.) ; segments of leaves lanceolate, toothed ; rare ; St. 

 Bernard, Arollathal, Dauphiny, Pyrenees. 



II. Erysimum, L. 



Plant hoary with adpressed forked hairs ; sepals erect ; 

 leaves narrow, entire; flowers yellow or white, often 



fragrant. 



