^6 



CRUCIFER/E 



pinnate; leaflets 7 — 13. ovate or oblong, sub-cordate, sinuate-den- 

 tate, glabrous. — Abundant in rivulets and extensively cultivated as 

 a salad. The only plant likely to be mistaken for it by watercress 

 gatherers, Apium nodifldriim (see p. 204), has hollow leaf-stalks, 

 and serrated leaflets, which watercress has not. (Name from 

 7iasiis tortus, a distorted nosej on account of the pungent pro- 



cheirAnthus cheiri (JVaUflcnver). 



perties of the genus. The possession of similar properties 

 caused a widely dissimilar plant, the TropcBolum of our gardens, 

 to be also originally called Nasturtium.) — Fl. May — October. 

 Perennial. 



** Ftowers yellow 

 2. R. sylvestn's (Creeping Yellow Cress). — Rhizome creeping; 

 leaves deeply pinnatifid ; leaf-segmetits lanceolate ;y?<?7ewjr minute ; 

 petals twice as long as the calyx ; pods linear. — Watery places. — 

 Fl. June — September. Perennial 



