TETRADYNAMIA— SILIQUOSA. Brassica. 219 



Annual. June, July. 



Root tapering. Stem erects 2 feet high, leafy, branched, glaucous ; 

 rough in the lower part with small, bulbous, spreading bristles ; 

 smooth upwards. Radical leaves lyrate, toothed and jagged, 

 rather glaucous, rough all over with minute bristly hairs ; those 

 of the stern dhlong, clasping at the base, the uppermost heart- 

 shaped, pointed, glaucous and entire. Fl. yellow, corymbose, al- 

 most as large as those of the Turnip. Cal. spreading, except at the 

 bottom. Pods on longish stalks, ascending, light brown, smooth, 

 li inch long, nearly cylindrical ; valves keeled, ribbed, veiny; 

 beak one-third of an inch in length, barren, tapering, furrowed, 

 tipped with the blunt permanent stigma. Seeds brown, globose. 



Most botanists, both British and foreign, have found a difficulty in 

 distinguishing this plant from B. Napus, and the confusion of 

 their synonyms is inextricable. B. campestris is perhaps the most 

 certainly wild of all our three species now described, nor can 

 there be a doubt concerning it, if the plate in Engl. Bot. and the 

 above description be attended to. Hudson mistook for this a 

 yellow variety of our Erysimum orientate, which is figured for it 

 in Fl. Dan. t. 550. The synonyms of Fuchsius and J. Bauhin, 

 cited with doubt in Fl. Br., possibly belong to B. Napus. 



4. B. oleracea. Sea Cabbage. 



Root stem -like, cylindrical, fleshy. Leaves glaucous, waved, 

 lobed, partly lyrate, all perfectly smooth. Pod without a 

 beak. 



B. oleracea. Linn. Sp. PI. 932 a. fVilld.v.3.548. Fl.Br.720. 



Engl. Bot. V. 9. t. 637. Hook. Scot. 203. Freeman Ic. t.4,5. 



Dicks. H. Sicc.fasc. 17. 14. DeCand. Syst. v. 2. 583 A. 

 B. maritima arborea, seu procerior, ramosa. Raii Syn. 293. Mo- 



ris.v. 2. 208. n.\5. 

 Sea Colewort. Petiv. H. Brit. t. 45./. 6 ; but with a wrong figure^ 



probably belonging to B. Napus; originating with Fuchsius, 



Hist. 415, and copied by Dodonseus, Gerarde, Morison and 



others, under the name of Brassica sylvestris. 



On cliffs near the sea. 



On Dover cliffs, and in similar places. Ray. On the Welsh and 

 Cornish coasts. Hudson. At Staiths, Yorkshire, abundantly. 

 Mr. E. Robson. At King's Cove, Devonshire. Mr. Sowerby. 



Biennial. May, June. 



Root raised above the ground in the form of astern, a foot or more 

 in height, cylindrical, leafy about the top, scarred below. Leaves 

 glaucous, rather fleshy, very smooth ; the lower ones large, ly- 

 rate, waved and sinuated ; upper oblong, obtuse, undivided, 

 toothed, or nearly entire. Fl. in longish corymbose clusters, 

 bright lemon-coloured, larger than any of the preceding species. 

 Calyx-leaves a little spreading, but straight,, close at the bottom. 



