S. alba. L. White or Yellow Mustard, has a great resemblance
to the other, but is different, and more rarely cultivated.
From the Greek name of the plant of nearly the same sound ;
mustard is from the Latin for hot must. Loudon.
E rysimum. L.. 13. 2. -
E. officinale. L. Hedge Mustard ; grows about gardens,
and beside fences ; resembles mustard, but is a smaller and more
diffusely branched, and more rough and ragged in its appearance.
Stem 2 feet high, and leaves runcinate, or lion-toothed ; flowers
from June to September. Its properties of little value. Supposed
to be healthful, and named from the Greek, to cure.
T hlaspi. L. 13. 2.
T. bursa-pastoris. L. Shepherd’s Purse, so plentiful about
gardens and*in roads and fields, is known by its triangular, wedge-
form, obcordate capsule, and its radical leaves pinnatifid. April
to October. Introduced.
T. campestris. L. Yellow Seed. Found in the fields, and
especially among flax, with the seed of which it was probably
brought from Europe ; its capsule is inflated and obcordate ;
stem-leaves dentate and sagittate ; flowers in June.
Both species are mere weeds ; from the Greek, to compress,
from the flattened fruit or seed. Loudon.
R aphanus. L. 14. 2. ■
R. raphanistrum. L. Cudloch. Wild Radish. A very
troublesome plant in cultivated fields, rough, bristly, glaucous,
with lyrate leaves ; stem two feet high; flowers in August ; introduced,
but naturalized in the woods of Chelsea Beach Island.
Big.
R. sativus. L. Radish ; cultivated for its root, of various
forms, taper-form, turnip, &c., and used as a relish, from its
pleasant spicy taste.
From the Greek, for rapidly appearing, on account of its rapid
growth. Loudon.
L epidium. L. 14. 1.
L. sativum. L. Peppergrass ; well known in the gardens,
its many-cleft leaves forming a pleasant relish ; exotic, from
Europe. The resemblance of the capsule'to a scale, gives name
to the genus.
L. Virginicum. L. Wild Peppergrass. Stem branching, a
foot high, with some pinnate leaves, and .upper ones long and
tapering ; much resembles the garden plant; grows in light soil,
and flowers in June ; silicle or pod is lentiform ; stamens often
only two.
CoCHLEARIA. L. 14. 1.
C. Armoracea. L. Horse Radish; naturalized in many
places, cultivated for its ro o t; leaves large and long and wide.
Named from a word for spoon, from the spoon-like depressions in
the leaves. Loudon.
C. officinalis. L. Scurvy Grass. Cultivated occasionally in
gardens.
Camelina. Crantz. 14. 1.
Its name imports dwarf-flax; a genus of few species, belonging
to Europe. The seed-vessel is a roundish pouch, with swelling
valves, and cells many-seeded.
C. sativa. DC. Gold of Pleasure. Cultivated occasionally
in England for the oil of its seeds, and has lately appeared in the
eastern part of this State. Stem about 2 feet high, branched;
flowers small, numerous, yellow, corymbose ; pouch long-pedi-
cillate ; leaves roughish, lanceolate, and sagittate ; fields ; June.
The plant has been introduced for some time into the Middle
States.
Cakile. L. 14. 1.
C. maritima. Nutt. American Sea Rocket. Grows along
the seashore ; stem flexuous, deep-green, smooth, with leaves