178 TETRADYNAMIA— SILICULOSA. Senebiera. 



C. Armoracia. Linn. Sp. PL 904. JVilld. v. 3. 45 1. Fl. Br, 690. 

 Engl. Bot. t). 33. t. 2323. H'ooclv. t. 150. Hook. Scot. 196. 

 DeCand. Syst.v. 2.360. 



Nasturtium n. 504. Hall Hist. v. 1.218. 



Raphanus rusticanus. Rctii Si/n. 301. Ger. Em. 241./. Matth. 

 Valgr. V. 1 . 40 1 ./. Camer. Epi(. 225./. Moris, v. 2. 237. sect. 3. 

 t. 7./ 2. 



R. sylvestris, Ftic/js. Hisi. 660./. Ic. 379. f. 



Broad Horse-radish. Petiv. H. ^Brit. t. 49./. 11. 



^. Jagged Horse-radish, Ibid.f. 12. 



In watery mountainous places. 



About Alnwick, and elsewhere in Northumberland. Ray. In se- 

 veral parts of Craven, Yorkshire. Dr. Lister. Common in waste 

 ground, about orchards and farm yards, from the refuse of gar- 

 dens. 



Perennial. May. 



The long, cylindrical, white, highly pungent roots, well known for 

 their use, on many occasions, at table, run deep into the ground, 

 and are extremely difficult of extirpation. The stems are 2 feet 

 high, erect, branched, spreading, bearing scattered, sessile, lan- 

 ceolate leaves, which are serrated, jagged, or deeply and nar- 

 rowly pinnatifid. Radical leaves very large, on long stalks, up- 

 right, oblong, obtuse, crenate, veiny, occasionally pinnatifid, a 

 foot or more in length. Fl. numerous, white, in numerous co- 

 rymbs, which soon become clusters of long-stalked, roundish-el- 

 liptical, compressed, notched pouches, most of which prove abor- 

 tive. The partition is very narrow. Style short. Stigina large, 

 capitate. All the herbage is smooth, of a dark green. 



326. SENEBIERA. Wart-cress. 



DeCand. Stjst. v. 2. 521. Comp. ed. 4. 108. 

 Coronopus. Gcertn. t. 142. Fl. Br. 690. Br. in Ait. H. Kew. 

 V.4. 76. Lam. t. 558. 



Cal. equal at the base, with ovate, concave, spreading, deci- 

 duous leaves. Pel. obovate, or ovate, undivided, sometimes 

 wanting. Filam. awl-shaped, simple, about the length of 

 the calyx, 2 or 4 of them occasionally deficient. Anth. 

 roundish, 2-lobed. Germ, roundish, or 2-lobed, com- 

 pressed. >S/j//^ very short. Siig7na obtuse. Poz^c/z roundish, 

 transversely compressed, more or less distinctly 2-lobed, 

 2-celled, not bursting, tipped with the style ; valves glo- 

 bose, or rounded and somewhat crested, rugged, each 

 lodging a solitary, pendulous, roundish s^f-rf,- cotyledons 

 incumbent, oblong, folded or channelled. 



Annual or biennial, nearly smooth, diffuse or prostrate 

 herbs. Leaves either undivided, or variously and deeply 



