CRUCIFER^ 25 



Malcolmia africana, R. Br. A native of sandy places 

 in the Mediterranean region, and a common weed in 

 cornfields in some parts of the same area. It has 

 occurred once or twice in England among corn aliens. 



Halcolmia crenulata, Boiss. A native of Syria, 

 which has more than once been recorded in connection 

 with corn aliens in England. 



Malcolmia littorea, R. Br. A native of the shores of 

 the Western Mediterranean area which has likewise 

 occurred among corn aliens in Britain. 



Malcolmia maritima, R. Br. This favourite garden 

 annual, native of the sea-coasts of Southern Europe, has 

 frequently been noticed as a garden escape in Britain. 



Matthiola bicornis, DC. A cornfield weed of Eastern 

 Europe found on several occasions among the siftings of 

 introduced grain in England. 



Matthiola incana, R. Br. Native of rocks near the 

 Mediterranean Sea. It has been recorded as established 

 near the coast in three places in England, namely, in 

 Somerset, in Devon, and in the Isle of Wight. In the 

 two first cases it is considered by local botanists to be 

 of garden origin. Bromfield considered it native in the 

 Isle of Wight, but its range as a native plant outside 

 Britain is opposed to this supposition. 



matthiola tristis, R. Br. Has once been recorded in 

 waste ground in England. It is native in rocky ground 

 in Southern Europe. 



