916 SINAPIS. LCLASS XV. ORDER II. 



distant, entire, or toothed, smooth, or slightly hairy, dark green, the 

 radical ones numerous, those of the stem much smaller, very distant, 

 Inflorescence terminal suh-corymbose racemes, becoming much elong- 

 ated in fruit. Calyx linear, oblong, closed at the base, more or Jess 

 spreading upwards, smooth, yellowish. Petals four, pale yellow, the 

 limb obleng, tapering into a claw. Stamens with awl-shaped Jila- 

 ments, erect. Fruit a long linear angular siliqua, veiny, terminating 

 in a long tapering beak, crowned by the obtuse stigma. Seeds nume- 

 rous in each cell, and from one to three in the beak. 



Habitat.— On the isles and shores of the river Clyde, aud Lorn, 

 Scotland, and on both sides of the Irish f channel. 



Perennial ; flowering in June and July. 



The whole plant, when bruised, has a pungent somewhat fcetid 

 odour ; but it is greedily sought after by sheep and cattle, and it is 

 probable that if cultivated in the sandy wastes near the sea, it would 

 be found a profitable and valuable article of food. It requires a light 

 soil, and after being cropped by cattle, it puts out numerous stems 

 and leaves, and thus would form a pasture, which, from its woody 

 roots penetrating deep in the soil, would be enabled to bear the drought 

 of summer, and rendering it, therefore, so much more valuable in a 

 sandy soil than any other. 



6, B. Chei'ranthus, Vill. Wallflower Cabbage. " Leaves stalked, 

 hispid, all deeply pinnatifid; lobes oval-oblong, unequally toothed, in 

 the upper one linear ; base of the stem hispid; pods cylindrical ; the 

 valves three nerved ; the beak one to two seeded." 



Hooker, British Flora, ed. 4. vol. i. p.256.— Bab. Prim. Fl. Sam. 

 ined. 



" The seeds in the rostrum distinguish this plant from all the 

 British species, except B. monensis ; but that has nearly a leafless 

 glabrous, and usually prostrate stem. In this plant the stems are 

 upright." — Babington, 



Habitat. — Sands of St. Aubin's Bay, Jersey. — Babington and 

 Christy. 



Biennial (?) flowering in July. 



Not having seen authentic specimens of this plant, we have given 

 its description aud remarks from the British Flora. 



GENUS XXV. SINA'PIS,— Linn. Mustard. 



Nat. Ord. Crucif'er^. Juss. 



Gen. Char. Siliqua linear, or oblong, with convex valves^ having 

 three or five longitudinal ribs. Calyx spreading. Seeds globose. 

 Cotyledons incumbent, channeled, conduplicate. — (See Fig. 2, p. 

 872.) — Name from the Greek a-ivocxt. 



