36 6. CETTCIPEE^. 



submerged. Root of many long -white fibres. St. 1 — 3 m. 

 bigb. L. linear-subulate, radical. Fl. small, wbite, often per- 

 fected under water.— Margins of alpine lakes. P. VII. E. S. I. 



Tribe IX. SeneUerem. 

 28. Senebib'ea Pers. "Wart-Cress. 



1. S. Cordnoptcs (Poiret) ; pouch undivided reniform wrinkled 

 and crested with little sharp points, style prominent, 1. pinnatifid 

 —E. B. 1616. R. ii. 9.— St. mucb branched, prostrate.— J?l 

 small, white, in lateral clusters opposite to the leaves. Pouches 

 large, in dense clusters. — Waste groimd, common. A. VI. — 

 IX. Swine's Cress. E. S. I. 



2. 8. did'yma (Pers.) ; pouch notched of two wrinkled lobes, 

 style very short, 1. pinnatifid.— jB. B. 248. S. ii. 9.— St. 

 spreading, prostrate, a foot or more in length. Fl. small, white, 

 in long slender lax clusters. Pet. very short or none. Often 

 only 2 stamens. — Waste ground near the sea in the South and 

 South-west. A. VII.— IX. E.I. 



Suborder IV. Nucumenfacece. Tribe X. Isatidex. 

 29. Isa'tis Linn. Woad. 



%\. I. tinctdria (L.) ; " radical leaves oblong crenate," pouch 

 abrupt smooth thrice as long as broad. — E. B. 97. JR. ii. 4. — 

 St. 1—4 ft. high, branched. Fl. yellow. Pouches J in. long, 

 pendent. — Waste land, rare. B. VII. E. 



Suborder V. LomentacecB. Tribe XI. CakilinetE. 



The fruit consists of a very small 2-celled, stalklike, usually 

 sterile pod. with a long moniliform beak bearing the seeds and 

 dividing transversely into as many indehiscent cells as there are 

 seeds. 



30. Caki'lb Gaert. Sea-Rocket. 



1. C. marit'ima (Scop.) ; joints of the pouch 2-edged, upper 

 with 2 teeth at the base, 1. fleshy pinnatifid or somewhat toothed. 

 - — E. B. 231. S. ii. 1. — Fl. purplish. Pouches an inch long, 

 erect, with 4 sharp angles, swordshaped in the upper part. — 

 Sandy sea-shores. A. VI. VII. Purple Sea-Bucket. E. S. I. 



31. Ceam'be Linn. Sea-Kale. 

 1. C. marit'ima (L.); pouch without a style, 1. roundish 



