334 



BOTANY OF CROP PLANTS 



BRASSICA OLERACEA VAR. BOTRYTIS 

 (Cauliflower, Broccoli) (Fig. 139) 



Cauliflower and broccoli are types of cabbage in which 

 there is a large "head," composed of abortive flowers upon 

 very much modified, thickened flower stems (Fig. 139). The 



Fig. 139. — Cauliflower (Brassica oleracea botrytis). 

 portion of "head." 



A, entire plant; B, 



metamorphosed inflorescence develops the first season, its 

 numerous short, fleshy, and closely crowded flower stalks 

 forming the head, as indicated above. Subtending the head 

 are a number of cabbage-like leaves. In growing the vege- 



