14 CRUCIFEIUE. 



length thickened.- Hab. Naturalized in Jamaica, by roadsides in the mountains (Macf); 

 [introduced from Europe]. 



4. SINAPIS, L. 



Sepals spreading, equal at the base. Silique linear, beaked, sessile : valves convex, 5-1- 

 nerved. Seeds uniserial. Cotyledons conduplicate. 



4. S. brassicata, L. Annual, glabrous ; leaves dissected at the base or not divided, den- 

 tate, inferior obovate, superior lanceolate ; petals yellow : claws equalling the spreading calyx; 

 siliques cylindrical, torulose, one-nerved and with prominent veins, shortly beaked, suberect 

 upon the spreading pedicel : beak styliform, without a seed. — Desc. Fl. 6. t. 430 ; Willd. 

 Hort. Berol. t. 14 : the form with the leaves not divided. — S. lanceolata, DC. S. integri- 

 folia, W. S. nigra, Desc. {exclus. descr.). Raphanu3 lanceolatus, W. {non Macf.). — Hab. 

 Caribbean Islands; [Guadeloupe!, S. Croix, tropical Asia]. — S.juncea, L. (Jacq. lit. Vind. 

 t. 171), is perhaps only a form of this, with lyrate leaves. 



Tribe II. ANGUSTISEPTjE. — Fruit (silicle) rounded: dissepiment linear. 

 5*. CAPSELLA, Vent. 



Petals entire. Silicle laterally compressed, many-seeded : valves keeled, not winged. 

 Cotyledons incumbent. 



5*. C. Bursa-pastoris, Moh. Annual; leaves usually runcinate, superior sagittate, 

 clasping, lanceolate ; silicles triangular-obcordate. Petals white. — Hab. Naturalized in Ja- 

 maica, in the mountain plantations ; [introduced from the Old World, now diffused through 

 both the temperate zones, and scattered in the tropical ones of all the continents] . 



6. LEP1DIUM, L. 



Petals entire (or wanting). Silicle laterally compressed : valves keeled, usually winged; 

 cells one-seeded. — Flowers white. 



6. 1*. virginicum, L. Annual, glabrous ; leaves lanceolate, usually serrate ; racemes 

 elongated ; flowers diandrous ; silicles nearly orbicular, wingless, emarginate ; cotyledon 

 accumbent. — Desc. Fl. 1. t. 41. — L. Iberis, Desc. (not L.). — Hab. Jamaica!, Al. ; An- 

 tigua !, Nichols. ; Tobago; [United States]. 



7*- I*, sativum, L. Annual, glabrous ; inferior leaves pinnatisect ; racemes elongated ; 

 flowers tctradynamous ; silicles nearly orbicular, winged and emarginate at the top ; seeds 

 oblong; cotyledons incumbent. — Desc. Fl. 1. t. 42. — Hab. Naturalized in Jamaica (Mac/.); 

 [introduced from the Levant]. 



7- SENEBIERA, Poir. 



Petals entire (or wanting). Silicles didymous : cells indehiscent, one-seeded. Cotyledons 

 incumbent, and bent transversely. — Racemes opposite to the leaves. 



8. S. pinnatifida, DC. Diffuse ; leaves pinnatisect ; silicles shorter than the pedicel, 

 emarginate at the top and at the base/reticulate-rugose. — Hab. Jamaica (Macf.), common in 

 the mountains ; [both the temperate zones of America ; naturalized in western Europe, in 

 Australia, etc.]. 



Tribe III. LOMENTACEM— Fruit separating transversely into one-celled, 

 one-seeded joints. 



8. CAKILE, Tournef. 



Sepals erect, the lateral ones gibbous at the base. Fruit two-jointed : seed of the upper 

 cell (the beak) erect, of the lower one pendulous. Cotyledons accumbent (sometimes ob- 

 liquely). 



9. C. eequalis, L'Her. Leaves lanceolate, subentire ; flowers whitish ; upper joint of 

 the fruit lanceolate-ensiform, tapering into the style, three times the length of the lower 

 cuneate one, and equalling it in breadth. —Desc. Fl. 1. t. 43 ; Tuss. FL \.t.\l- Bunia* ■ 

 Cakile, Desc. Cakile cubensis, Kth. C. ajgyptiaca, Tuss. C. maritima, Rich. Cub. R»* 



