CRUCIFEROUS TRIBE. 



71 



26. DIPLOTAXIS (Rocket). 



1. D. tenuifolia (Wall Rocket). Pods linear, slightly 

 beaked, erect ; stem erect, slender, smooth, leafy ; leaves 

 very narrow, smooth, acute, deeply divided into narrow 

 segments. A slender, branched plant, from one to two 

 feet high, with a tough stem, woody below, scattered 

 foliage, and large light yellow flowers \ it grows on walls-, 

 quarries, and rubbish, principally in tin-, neighbourhood 

 of large towns. Fl. all the summer. Pon-nnial. 



* D. murdlis (Sand Rocket), an annual, with a bristly 

 stem, is very like the last, and grows in barren places 

 near the sea, but is not considered indigenous. 



VASTUB RAPHANIHTRT; v <w-M /.' 



