THE CRUCIFORM FAMILY. 69 



SEA CABBAGE. Brassica Oleracea. 



Root, stem-like (Caulescent,) Cylindrical, fleshy. All the 

 leaves smooth, of a blue-green (glaucous,) waved and lohed. 

 Upper ones oblong, sessile. Leaves thick, fleshy, (subcarnose,) 

 the upper ones undivided but toothed. Varying in height from 

 one to two feet. Flowers rather large, pale yellow. It grows 

 on Cliffs, by the sea, (in Devon, Cornwall, Dover, Yorkshire, 

 Wales,) and is the origin of our garden Cabbage. 



TURNIP. Brassica Rapa. 



Root round, (orbicular) or oblong ; fleshy : radical leaves, 

 lyre-shaped, (lyrate, pi. II. 14 L.) rough. 



Lower stem-leaves, cut irregularly (incised), upper ones 

 heart-shaped, approaching to oval (cordato-ovate) tapering to 

 a point : clasping the stem, upper leaves, nearly smooth, all, 

 more or less toothed. Varying exceedingly, in height, accord- 

 ing to soil. Flowers yellow, common in borders of fields : 

 road sides, &c.] 



THE COLE, on KAPE-SEED, and the NAVEW or 

 SWEDISH TURNIP are very similar plants to the Tur- 

 nip ; so similar, that they may be called varieties 

 only ; and not species. Their leaves are smooth, and 

 of a blue-green, and the Rape has a slender root. Its 

 seed is very valuable for its oil. The seeds, after 

 pressure, are made into cakes, and used for feeding 

 Cattle ; and as manure. 



MUSTARD (Sinapis Nigra,) is another of the 



