84 



THE CRUCIFER FAMILY. 



notched at the top, marked with deep 

 wrinkles, which form a kind of crest 

 round the edge ; it usually remains entire 

 when ripe. 



In cultivated and waste places, in cen- 

 tral and southern Europe to the Cau- 

 casus, extending northward into Sweden. 

 Rather plentiful in southern England 

 and Ireland, decreasing northwards, and 

 quite local in Scotland. Fl. summer 

 and autumn. 



Fig. 106. 



2. Lesser Senebiera. Senebiera didyma, Pers. (Fig. 107.) 



(Lepidium, Eng. Bot. t. 248.) 



Much like the common S. in habit and 

 foliage, but generally more slender, often 

 sprinkled with a few hairs ; the leaves 

 rather smaller and more divided ; the 

 flowers smaller, in looser racemes. Pod 

 scarcely more than a line broad, but 

 slightly wrinkled, and readily separating 

 into two ovoid nuts. 



On the seacoasts of North and South 

 America, South Africa, and western 

 Europe. In Britain, on the southern 

 and western shores of England, from 

 Sussex to Caernarvonshire, and in Ire- 

 land. In inland districts only as an occasional straggler. Fl. all 

 summer. 



Fig. 107. 



XXV. WOAD. ISATIS. 



Erect annuals or biennials, with undivided leaves, the upper ones 

 clasping the stem, and auricled. The flowers small, yellow, and nurae- 



