CRUCIFEROUS TRIBE. 



67 



MATTHfOLA INC AN A (Hoary Shrubby Stock). 



Cherlock, from which, however, it may readily be dis- 

 tinguished by the smoothness and glaucous hue of its 

 upper leaves. M. June, July. Annual. 



2. JB. olerdcea (Sea Cabbage). Root stem-like, fleshy ; 

 leaves perfectly smooth, glaucous, waved, lobed ; stem 

 leaves oblong, obtuse. The original of all the varieties 

 of garden cabbage, growing on several parts of the sea- 



F2 



