( J.julacea .) 
BRITISH J UNGERM ANNIA5. 
The reticulation (f. 7.) is large in proportion to the size of the leaf, and formed by 
cellules of a somewhat rounded figure, which are opaque in the centre. The color of 
the leaves, when the plant grows in the shady crevices of rocks, is generally a dirty 
green approaching to olive, but when it is in a more exposed situation, it is a pale 
silvery white, which under the microscope seems to be caused by an extremely minute 
granulated substance, probably an exudation from the leaves. This color and appearance 
are particularly prevalent in wet spongy places, and my var. /3 (f. 15) possesses them 
in a very striking degree. 
The pcricluetial leaves (f. f. 8,8) surround the calyx for nearly a third of its height; the 
exterior ones differ from those of the stem only in being larger and somewhat plicated: 
the interior are quadripartite, much resembling the stein-leaves of J. setiformis. 
Male Fructification I have not seen. 
Female Fructification terminal upon the stems and branches. 
Calyx (f. 9) oblong, longitudinally plicated in the upper part, and toothed or lacerated 
at the margin, where it is white and diaphanous, while the rest is of a dirty brow'n 
or olive color ; the whole comparatively of a rigid texture, marked throughout with 
small oblong reticulations (f. 10). 
Calyptra (f. 14) ovate, thin, of a dirty white color, reticulated, tipped with a minute 
style, and bearing near its base two or three abortive pistilla : the base itself is firmly 
united to the lower part of the calyx, and not separable from it. 
Peduncle scarcely a quarter of an inch in length, white, succulent, longitudinally and 
transversely striated. 
Capsule (f. 9) globose, of a shining brownish black, opening into four equal, ovate valves 
(f. f. 11, 12), which, after the discharge of the seeds, become revolute, some of the 
filaments still remaining attached to the centre. 
Seeds and spiral filaments (f. 13) reddish brown, the former spherical and smooth; the latter 
short in proportion to their width, and formed of a double helix. 
J ar. (3 (f. 15) grows to the height of nearly two inches, and has its stem and branches 
slender in proportion to their length, bearing also more distantly-placed, smaller and 
less-appressed leaves than at. The silvery hue is, as I liave before mentioned, very 
striking in this variety. 
J. julacea, which is altogether an alpine species and a plant of unfrequent occurrence, is, by 
i vize, its mode of growth, and its color, readily distinguishable from every other, except 
indeed from J. concinnata, to which in all these particulars it is very nearly allied. From this 
it differs, as well in the shape of the leaves, as in their disposition, they having the appearance 
lj, imbricated on all sides, though in reality they are quadi ifarious, whence arises a 
quai rangular form in the stems and branches. These shoots too are of an equal thickness 
