216 TETRADYNAMIA— SILIQUOSA. Brassica. 



Turrita vulgatior. Clits. Hist. v. 2. 126./. 



Sinapi album. Dalech. Hist. 1168./. 



Brassica silvestris foliis circa radicem cichoraceis asperis^ caulibus 



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



t. 2. f. 22. 

 Tower Mustard. Petiv. H. Brit. t. 47. 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 j 

 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 short stalks. 

 Seeds about 60 in each cell, very small. 



342. BRASSICA. Cabbage, Turnip, &c. 



Linn. Gen. 342. Juss. 23S. Fl.Br.7\7. Comp. ed. i. 108. Br. in 

 Ait. H. Kew. v. 4. 123. DeCand. Stjst. v. 2. 582. Tourn. 1. 106. 

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



Rapa. Tourn. t. 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. Genii, cylindrical, the length 

 of the longest stamens. St7/le tapering, making a beak to 

 the pod. S^z^w a capitate, entire. PocZ 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 ; the ste???, or 

 body of the 7^oot, 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 base. Fl. in long clusters, 

 vellow, rarely white. 



