Cakile.} TETRADYNAMIA — SILICULOSA. 245 



convulsed nose, an effect supposed to be produced by the acrid 

 and pungent quality of this plant. 



23. Sisymbrium. Pod rounded or angular. Cotyledons in- 

 cumbent (o I]) (sometimes oblique), plane. Calyx patent, some- 

 times erect. Br. — Name, GKjvfjbjSpiov ; given by the ancients to 

 some plant, perhaps allied to this. 



24. Erysi3IUM. Pod 4-sided. Seeds not margined. Cotyle- 

 dons incumbent (o ||). Stigma capitate, sometimes emarginate, 

 with the lobes patent. Cal. erect, Br. — Named from 5^uw, to 

 cure, on account of the supposed virtues of the plant. 



25. Cheiranthus. Pod compressed or 2-edged. Cotyle- 

 dons accumbent (o =). CaL erect, opposite leaflets saccate at 

 the base. Stigma placed on a style, 2-lobed, the lobes patent 



or capitate, Br Named from the Arabic Kheyry, not however 



originally applied to this Genus. 



26. Matthiola. Pod (rounded or compressed) crowned 

 with the counivent 2-lobed stigma, the lobes either thickened 

 at the back, when the cotyledons are incumbent (o|l), or with 

 a point at the base. Cal. erect. Longer filaments dilated. 

 Br. — Named in honour of an Italian physician, P.A.Matthiolus. 



27. Hesperis. Pod 4-sided or 2-edged. Stigma nearly 

 sessile, the lobes connivent. Cotyledons incumbent (o ]|), plane. 



Cal. erect. Br Named from Itrrseo.;, the evening; at which time 



the flowers yield a powerful fragrance. 



28. Brassica. Pod 2-valved (with a sterile, one- or many- 

 seeded beak). Cotyledons conduplicate (o »). Calyx erect, 

 Br. — Name derived from the Celtic Bresic, a Cabbage. 



29. Sinapis. Pod 2-valved (sometimes of 2 joints, of which 

 the upper one is without valves). Cotyledons conduplicate 

 (o»). Cal. patent. Br. (Sinapis and Diplotaxis, DC.) — 

 Named from the Greek ci'^a-i, which again Theis derives from 

 the Celtic Nap, a turnep or cabbage. 



SO. Raphanus. Pod without valves. Cotyledons condupli- 

 cate (o»). CaL erect. Br. — Name, — »a, quickly, and fa/Vo/xa/, 

 to appear ; from its rapid vegetation. 



TETRADYNAMIA— SILICULOSA. 



1. Cakile. GcErt. Sea- Rocket. 



1. C. maritima, Willd. {purple Sea-Rocket) ; joints of the 

 pouch two-edged, the upper one with two teeth at the base, 

 leaves fleshy pinnatifid somewhat toothed — Bunias Cakile, L. 

 —E. Bot. ^.231. 



Sandy sea-shores, frequent. Fl. Juno, July, ©.—Bushy. Branches 

 crooked, and, as well as the whole plant, succulent. Flowers purplish, 

 rarely white. Pouch thick, fleshy, at length somewhat woody. 



