26 CRUCIFER^. 



4. LEPIDIUM. Linn. Pepper-grass. 



Gr. lepti, a scale; in allusion to the form of the pouch. 



Calyx equal at the base. Petals entire, ovate. Fila- 

 ments without teeth. Silicles laterally compressed, orbicu- 

 lar-ovate, or oval; septum very narrow, crossing the greater 

 diameter; valves carinate, dehiscent: cells 1-seeded. Seeds 

 somewhat 3-angled. Cotyledons incumbent, rarely accum- 

 bent. — Annual or biennial herbs, v:ith white flowers. 



1. L. VlRGiNlCUM, L. Wild Pepper-grass. 



Stem, branched ; radical leaves pinnatifid ; stem leaves linear lanceolate, serrate, 

 smooth ; stamens 2 to 4: silicles orbicular, emarginate, shorter than the pediceL 



Dry fields and roadsides. May — Sept. Stem a foot high, branched abov». 

 Fknoers small,, white. Pouch about 2 lines long. 



2. L. sativum, L. Pepper-grass. Tongue-grass. 



Leaves variously divided and cut: branches without spines: silicUs orbicular 

 winged. A pleasant anti-scorbutic cress : often cultivated for the table. Stunt I 

 to 3 feet high, very branching. Silkies 2 to 3 lines broad. Tery numerous. Native 

 of the East. 



5. CAMELIXA. Grants. False Flax. 



Gr. kamai, dwarf, and linon, flax: on account of its resemblance to flax. 



Calyx equal at the base. Petals equal. Filaments 

 without teeth. Silicle ob-ovoid or sub-globose, obtuse, 

 entire, mucronate with the persistent style. Seeds numerous, 

 oblong, not margined. — Annual. Plotvcrs yellow. 



C SATIYA, DC 



Leaves lanceolate, saggitate, sessile, roughish; silicic inflated, margined; cotyledons 

 incumlent. 



Cultivated grounds : common in flax fields. May, June. Stem 2 to S feet high, 

 panicled above. Flowers numerous, in corymbose panicles, small, yellow. 

 Pouches large, on long slender pedicels. Introduced from Europe. It ha* been 

 fancied by somo to be a sort of degenerate flax. 



6. COCHLEARIA. Linn. 



Lat. cc/chlcar. a spoon : in reference to its concave leave*. 



Calyx equal at the base, spreading. Petals entire. 

 Stamens without teeth. Silicle oblong or ovoid-globose, 

 with ventricose valves. Seeds numerous, not margined. — 

 Flowers white. Perennial. 



C. Armor ace A, L. Horse-radish. 



Eadical leaves on long petioles, oblong, crenate : cauline long-lanceolate, wrrate 

 or entire, sessile; silicle elliptic. 



Waste grounds. Naturalized. June. Roft large, fleshy, very pungent to tb« 

 taste. Stem 2 to 3 feet high. Flotccrs white in elongated raceme*. Native of 

 Europe. Extensively cultivated. 



