216 TETRADYNAMIA— SILIQUOSA. Brassica. 



Tunita vulgatior. Clus. Hist. v. 2. 126./. 



Sinapi album. Dalech. Hist. 1168./. 



Brassica silvestris foliis circa radicem cichoraceis asperis, caulibus 



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



t. 2. f. 22. 

 Tower Mustard. Petic. H. Brit. t. 47./. 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, Juyie. 



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. JF7. numerous, closely 

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

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

 Seeds about 60 in each cell, very small. 



342. BRASSICA. Cabbage, Turnip, &c. 



Linn. Gen. 342. Juss. 238. Fl.Br.7\7. Cotnp. ed. 4. 108. Br. in 

 ^it.H.Ketv.v. 4. 123. DeCand. Syst. v. 2. 582. Tourn.t. \06. 

 Lam. t. 565. Gcertn. t. 143. 



Rapa. Tourn. t. 1 13. 



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. Sti/lc tapering, making a beak to 

 the pod. &z^OTa capitate, entire. Porf nearly cylindrical, 

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

 besides 1 in the beak, whicli 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 ; the stem, or 

 body of the root, occasionally very fleshy. Leaves some- 

 what succulent, smooth or rough ; the radical ones 

 mostly stalked, lyrate, or pinnalifid; upper more simple 

 or entire, clasping at the base. Fl. in long clusters, 

 vellow, rarely white. 



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