patches. The stems are procumbent, from 4 to 6 inches
long, flexuose, filiform, divided once or twice in a dichotomous
manner, and then pinnated with horizontal acuminated
branches. The leaves are rather closely placed, and imbricated
over the upper surface of the stem, bifarious in their
direction, roundish or subquadrate, very concave, loosely
cellular, purplish brown, composed of two very unequal con-
duplicate lobes, of which the upper one is the largest, and
divided, for about half its length, by an acute sinus, into
two ovate segments, which are beset at their margins with
variously sized, but generally large, spiniform teeth : the
inferior lobe is exceedingly minute, and indeed resembles
one of the spinules, only that it is broader : but it holds the
place of the inferior lobe in the closely allied J . ciliaris.
The stipules are very large, considerably broader than the
stem, widely ovate, cleft into,spinuloso-dentate segments,
and at the base on each side there is a reflexed tooth or
spur—W. J. H.