34 
6. CBXrCIFEILa. 
Tribe IX. Subularieee. 
29. Sitbula'kia Linn. Awl-wort. 
1. S. aquat'ica (L.) ; E. B. 732. R. ii. 12.— Cotyledons only 
once folded, but curved back upon themselves above thei^ base, 
therefore incumbent not bicrures. Plant small, subaqueous. 
L. linear-subulate, radical. Root of many long white fibres, 
Fl. small, often perfected under water. — Margins of alpine lakes. 
P. vn. E. s. I. 
Tribe X. Senebierea. 
30. Senebie'ea Pers. Wart-cress. 
1. S. CorSnojms (Poiret); pouch nndivided rmiform crested 
with little sharp points, style prominent, 1. pinnatifid. — E. B. 
1660. R. ii. 9. — St. much branched, prostrate. Fl. small, white, 
in lateral clusters opposite to the leaves. Pouches large, in 
dense clusters. Cotyledons in this genUs curved back upon 
themselves above their base, not at it as is usual in Crucifera. — 
"Waste ground, common. A. VI. — IX. Swine' s-cress. E. S. I. 
2. S. did' y ma (Pers.) ; pouch notched of two ivrinMed lobes, 
style very sliort, 1. pinnatifid.—^. B. 248. R. ii. 9. — St. spread- 
ing, 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 grovmd near the sea in the South and South- 
west. A. VII.— IX. ■ E. I. 
Suborder IV. Nucumentacece. Tribe XI. Isatidece. 
31. Isa'tis lAnn. Woad. 
\1. I. tinctdria (Jj.) ; " radical leaves oblong crenate," pouch 
abrupt smooth thrice as long as broad. — E. B. 97. R. ii. 4. — 
Waste land, rare. B. VII. E. I. 
Suborder V. Lomentacece. Tribe XII. Cakilinea. 
The fruit consists of a vei7 small 2-celled, stalklike, usually 
sterile pod, with a long monJliform beak bearing the seeds and 
dividing transversely into as many indehiscent cells as there are 
seeds. 
32. Caki'le Gaert. Sea-Rocket. 
1. C. marit'ima (Scop.) ; joints of the pouch 2-edged, the up- 
per one with 2 teeth at the base, 1. fleshy pinnatifid or somewhat 
toothed. — E. B. 231. R. ii. 1. — Fl. purplish. Pouches an inch 
