216 TETRADYNAMIA-SILIQUOSA. Brassica. 



Turrita vulgatior. Cliis. Hist. v. 2, 1 26./. 



Sinapi album. Dalech. H'lst. 1 168./. 



Brassica silvestris foliis circa radicem cichoraceis asperis, caulibus 

 autem adhserentibus planis sen glabris. Moris, v. 2. 210. sect. 3. 

 t. 2./. 22. 



Tower Mustard. Petiv. H. Brit. i.Al.f. 10. 



On banks and by road sides, in a dry gravelly soil. 



In many parts of Norfolk, as well as other counties. Rare in 

 Scotland. 



Annual. May, June. 



Root tapering. Stem 2 or 3 feet high, erect, wand-like, simple, 

 smooth, except at the bottom, round, leafy. Radical leaves nu- 

 merous, spreading, toothed, or sinuated, so as to be almost ly- 

 rate, rough on both sides with rigid, forked or simple, hairs ; 

 stem-leaves numerous, upright, oblong-arrow-shaped, entire, 

 glaucous, quite smooth, clasping the stem, but not perfoliate as 

 some writers have denominated them. Fl. numerous, closely 

 corymbose, pale sulphur-coloured. Pods very long and slender, 

 smooth and even, erect, close to the stem, on siiort stalks. 

 Seeds about CO in each cell, very small. 



342. BRASSICA. Cabbage, Turnip, &c. 



Linn. Gen. 342. Juss. 238. Fl. Dr. 7 17. Comp. cd. 4. 108. Br. in 

 Jit. H. Kew. V. 4. 123. DeCund. Sijst. v. 2. 582. Tourn. M06. 

 Lam. t. .OG.'). Gcertn. t. 143. 



Ra])a. Tourn. /. 113. 



Cal. equally protuberant at the base ; leaves oblong, con- 

 cave, converging in their lower part, spreading in the 

 upper, deciduous. Pet. obovate, spreading, undivided ; 

 their claws erect, channelled. Filam. awl-shaped, simple, 

 erect. Anth. oblong, nearly erect, a little recurved. 

 Glands 4 ; 2 at the inside of the shorter filaments, 2 at 

 the outside of the longer. Germ, cylindrical, the length 

 of the longest stamens. Stijie tapering, making a beak to 

 the pod. Stigma capitate, entire. Pod nearly cylindrical, 

 beaked, of 2 concave valves, and 2 longitudinal cells, 

 besides 1 in the beak, which is often barren. Seeds in a 

 single row, nearly globular, with one or more occasion- 

 ally in the beak; cotyledons folded, incumbent, their dou- 

 bled edges meeting the radicle. 



A numerous genus, for the most part biennial; the5tow, or 

 body of therooif, occasionally very fleshy. Leaves some- 

 what succulent, smooth or rough ; the radical ones 

 mostly stalked, lyrate, or pinnatifid; upper more simple 

 or entire, clasping at the ba^e. Fl. in long clusters, 

 yellow, rarely while. 



