CRUCIFER^. 19 



recurved, shorter than the awl-shaped style. — N. W., in 

 beds of pools and streams. 



6. N. amphib'ium, E. Br. Flowers white. Stem tall, 

 erect, branching above, sparingly pubescent. Leaves lyrate- 

 pinnatifid, rough-pubescent, the lobes coarsely toothed. 

 Pods several times longer "than the style, but much shorter 

 than the pedicels. — Wet places. 



2. BASBARE'A, E. Br. Wdtteb Cbess. 

 B. VUlga'riS, B,. Br. (Yellow Eooket.) Stem smooth, 

 1-3 feet high. Lower leaves lyrate, the terminal division 

 round and generally large, and 1-5 pairs of lateral ones (the 

 latter sometimes absent) ; upper leaves obovate, more or less 

 pinnatifid at the base. Pods linear, erect, or slightly 

 spreading. In var. stPieta, a common form in the North- 

 West, the pods are appressed. — Low grounds. 



3. VESICA'BIA, Lam. BLADDER-POD. 

 V. LudOVieia'na, DC (Western Bladdbr-pod.) (Leaque- 

 rella Ludoviciana, Watson, var. arenosa, Watson.) Stem 

 low, simple, or somewhat branched above. Flowers large. 

 Radical leaves spathulate, entire ; stem-leaves linear. Pods 

 hairy, globose, rather longer than the style. — N. W. 



4. DESITA'EIA, L. TOOTHWOET. Peppek-boot. 



1. D. dlphyl'la, L. (Two-leaved T.) Flowers white. 

 Stem-leaves 2, nearly opposite, ternately divided. Eoot-stook 

 toothed, pleasantly pungent to the taste. — Kich woods. 



2. D. laeinia'ta, Muhl. (LACiNLiTE T.) Flowers purplish. 

 Stem-leaves 3, in a whorl. Eoot-stock jointed, scarcely 

 toothed. — Eich woods. 



5. CARDAM'INE, L. BiTTEa Chess. 



1. C. rhomboi'dea, DC. (Spring Cress.) Flowers white 

 or (in var. purpurea) rose-purple. Stem tuberous at the 

 base. Lower leaves round-cordate; upper nearly lance- 

 olate ; all somewhat angled or toothed. — Wet meadows. 



2. C. pratensis, L. (Gttckoo-Flower. Ladies' Smook.) 

 Flowers white or rose-colour, showy. Stem from a short 



