198 SUMMER FLOWERS. 



or oblong lobe and a few small lateral ones, the upper often 

 small and entire ; flowers small, yellow ; pods closely pressed 

 against the axis of the long slender racemes, glabrous, with a 

 small beak. Waste and cultivated places. Fl. June, July. 



(29) Diplotaxis. 



D. tenuifolia : stems ] -2 feet high, glabrous and somewhat 

 glaucous, emitting a disagreeable smell when rubbed; leaves 

 irregularly pinnate, with few lanceolate or oblong, entire or 

 coarsely -toothed segments, the upper ones often entire or nearly 

 so; flowers large, lemon -coloured; pods in a loose raceme, about 

 1^ inch long, spreading, with numerous small seeds distinctly 

 arranged in two rows. Old walls, ruins, and waste places. Fl. 

 June to October. 



D. muralis : annual; stem branching from the base, usually 

 about six inches high ; leaves mostly radical, or crowded at the 

 base, ovate-lanceolate, sinuately toothed, sometimes pinnatifid ; 

 flowers much smaller than the last, the pods and seeds similar, 

 but also smaller. Fields and waste places in the south, near 

 the sea. Fl. all summer. 



(30) Raphanus. RADISH. 



E,. Raphanistrum : annual ; stem erect or spreading, 12 

 feet high, much branched, with a few stiff hairs at the base ; 

 leaves pinnately divided or lobed, the terminal segment large, 

 obovate or oblong, rough with short hairs, the upper ones 

 narrow and entire ; flowers white with coloured veins, or lilac ; 

 pods beaded, often separating in joints between the seeds, 

 shorter than the very long beak. Jointed Charlock, a weed of 

 cultivation. Fl. June, July. 



Var. maritimus : biennial ; leaves more divided, with over- 

 lapping lobes; flowers yellow; pods longer in proportion to 

 the beak. Sea-coasts, rare. 



