5° 



CRUCIFER.'E 



Two Other small species allied to C. ddnica, C. gra-nAi/iduv, 

 with fleshy /eovrs, and C. //i/afiva, a perennial with long claws 

 to its relatively large /('/((A, are found in the north of Scotland. 



1 8. Armoraha (Horse-radish) 



nSVuyyv-Gr.iss) 



5t' lions. Fl. June -September. 



Perennial glabrous herbs, 

 with rhi'-^oDies: : flowers 

 small, white or }ellow ; 

 ppds short, broad, nearly 

 globose, with no dorsal 

 veins. (Name of uncertain 

 origin.) 



1. A. riisticana (Horse- 

 radish). — Rhizotne stout, 

 long, cylindric, white and 

 pungent ; brandies 2 — 3 

 feet high : radical leaves 

 8^12 in. long, on stalks a 

 foot long, oblong, wavy, 

 crenate ; laiihiie leaves sub- 

 sessile, lanceolate, serrate ; 



flowers small ; pods not 

 ripening in England. — 

 VVaste-ground ; a common 

 escape from kitchen gar- 

 dens ; but not indigenous. 

 — Fl. May — June. Perennial. 



2, A. amphibia (Amphi- 

 bious Yellow Cress). — 

 Roats fibrous ; ?-/iizo!ne 

 short, stoloniferous ; leaves 

 pinnatifid or deeply serrate ; 

 petals, twice as long as the 

 calyx. — A large plant, 2 — .\ 

 feet high, growing on the 

 banks of rivers, or partly 

 submerged, remarkalile for 

 its numerous runners or 



I'ereiinial. 



*i9. Camki.i'n.v s.\r\\.\ (Gold of Pleasure) is another escape 

 Irom cultivation. It has tall, slender s/eiiis : with obtuse, auricled 

 eaiiliiie leaves : small yellow y/OTi'iV-f and obovoid inflated /(?A. — 

 PI. June, July. Annual. (Name from the Greek ehaitiai, dwarf, 

 linoii, flax.) 'Pile plant is culti\'ated for the oil m its seeds. 



