CRUCIFERyE 15; 



Brassica adpressa, Boiss. A native of river banks 

 and sea shores in the Mediterranean region, and a weed 

 of cultivation in most parts of Europe and Western Asia.. 

 In England it has been several times recorded from 

 localities where foreign grain-siftings have been thrown 

 away, and also in fields sown with foreign seed. 



Brassica alba, Boiss. Indigenous in the natural 

 pastures of Southern Europe and Northern Africa. In 

 Britain and Northern Europe in general it is only a 

 weed of cultivated and waste ground. 



[Brassica campestris, L. This name, taken in a wide 

 sense, includes a wild form {Brassica sylvestris, H. C. 

 Watson) indigenous in meadows in Southern England. 

 Other forms — Rape, Swede, and Turnip — are frequent 

 escapes from cultivation.] 



[Brassica Cheiranthus, Vill. Native in rocky and 

 sandy ground from the Peninsula through Western 

 France to Normandy and Western England. In the 

 greater part of its range it shows a tendency to spread 

 over dry waste ground, railway banks and hedgebanks,. 

 and in England it is very rare except in such situations.] 



Brassica dissecta, Boiss. A weed of Southern 

 Europe which has appeared on several occasions 

 among colonies of grain aliens. 



Brassica elongata, Ehrh. Native of dry deserts in 

 Asia Minor, and a weed of cultivated and waste ground 

 in various parts of Europe. Several times recorded in 

 waste places in England, once in connection with grain- 

 siftings. 



