2821
S IN APIS Cheiranthus.
Wall-flower Mustard.
T E T R A D Y N AM IA Siliquosa.
Gen. Char. Pod linear or oblong ; valves convex,
with 3 or 5 straight and strong nerves. Seeds
in 1 row, globose. Cotyledons incumbent, folded
together.
Spec. Char. Leaves stalked, hispid, all deeply pin-
natifid ; lobes oval-oblong, unequally toothed, in
the upper leaves linear. Pods cylindrical; valves
3-nerved. Calyx erect, adpressed. Stem hispid
below.
Syn. Sinapis Cheiranthus. Koch, Deutsch. Fl.v. 4.
717. Syn. 55.
Brassica Cheiranthos. ” Vill. Dauph. v. 3. 332.
t. 36.” DeCand. Syst. v. 2. 600. Bot. Gall.
51. Loisel. FI. Gall. v. 2. 70. . Gaud. FI. Helv.
■ 4. 379. Reich. FI. Excurs. no. 4432.
T h is plant is referred to the genus Sinapis rather than
to Brassica, in conformity with the new arrangement of
the Brassiceae by the celebrated Koch, as quoted above. I
must refer to his Deutsck. Flora and Syn. FI. Germ, for
the details, merely observing that he removes Sinapis nigra
to the genus Brassica, and that our B. monensis, which is
very nearly allied to the plant before us, must also be considered
as a species of Sinapis.
Root thick, woody and perhaps perennial. The radical
leaves numerous, rosulate, the cauline ones few and distant,
all stalked and deeply pinnatifid; the lobes of the lower
leaves oblong-ovate and unequally toothed, of the upper
ones linear and entire. Stem round, branched, hairy below