37 
Lepidium .'] vi. crucifers : lepidine.e. 
Shallow margins of alpine lakes, not very frequent. If . . 7 . — 
Roots of numerous, long, white fibres. Leaves few, radical, awl- 
shaped, 2 — 3 inches long. Scape 3 — 4 inches high. Flowers small, 
appearing even under water. Pouch nearly approaching that of 
JDraba , but with more turgid and convex valves, having one conspi- 
cuous middle nerve, and sometimes two fainter ones. Embryo with 
its cotyledons linear, long ; and the curvature takes place, not at the 
very base of the cotyledons as in most other Crucifercc, but above the 
base, so that a section made below this exhibits the appearance of 
four cotyledons without a radicle. 
Tribe VII. Lefidine.®. Pouch with the valves keeled or con- 
vex ; or fruit short and indehiscent, 2- celled : dissepiment very 
narrow. Col. o||, rarely (in Lepidium) o=. (Gen. 24 — 26.) 
24. Capsedla Vent. Shepherd’s Purse. 
Pouch laterally compressed, obcordato-cuneate (or elliptical) ; 
the valves navicular, without wings; cells many-seeded. — 
Name : the diminutive of capsula, a capsule or little-box. 
1. C. Bursa Pastoris DC. ( common S.) ; pubescent or hairy, 
stem-leaves sessile lanceolato-sagittate, pouch obcordato-cuneate. 
Thlaspi L. : E. B. t. 1485. 
Corn-fields and waste places, every where, most abundant. ©. — The 
whole summer. — Very variable, from 3 inches to 1 — 2 feet high. 
Leaves all generally toothed and rough with hairs; radical ones more 
or less pinnatifid. Flowers small. 
25. Lepidium Linn. Pepper-wort. 
Pouch with the cells 1 -seeded ; the valves keeled or winged. 
Petals equal. Cot. sometimes o=. — Name: XtniQ, a scale, 
from the form of the little pouches. 
* Style minute. 
1. L. latifdlium L. (broad-leaved P .) ; leaves ovato-lanceolate 
undivided serrate or entire, pouch oval entire downy with a 
minute style. E. B. t. 182. 
Wet sandy shady places, near the sea and salt-marshes ; in Norfolk, 
Essex, and Yorkshire. Weems and Donibristle, in Fifeshire, but 
apparently only naturalized. 2 /.. 7, 8. — Stem 2 — 3 feet high, 
branched, erect, with large leaves. Flowers numerous, small, in many 
terminal and axillary clustered racemes. 
2. L. ruderdle L. (narrow-leaved P.) ; flowers diandrous 
without petals, radical leaves pinnatifid, those of the branches 
linear entire, pouch roundish-oval emarginate patent with a 
minute style. E. B. t. 1595. 
Waste places near the sea, and among rubbish. Q 5,6. — The 
