( J. minutissima .) BRITISH JUNGERMANNIiE. 
Leaves about the twentieth of a line in length, distantly placed, bifarious, alternate 
with regard to the stem, patent or erecto-patent, of a roundish-ovate figure, on the upper 
surface very convex, so as to be almost hemispherical, the margin is frequently altogether 
entire, sometimes furnished in the lower part with a small, oblique and obtuse notch, 
which can scarcely be said to constitute an unequally two-lobed leaf; the rest of the 
margin is wholly free from serratures or incision of any kind. The color is a pale 
greeii ; the texture thick and succulent ; the cellules small, roundish, and a little 
prominent. 
Perigonial leaves placed at the extremity of a branch ; eight or ten in number, more closely 
placed than the cauline leaves, but in no other respect do I perceive that they differ 
from them. 
Perichatial leaves (f. f. 2. 4) the tenth of a line long ; one pair originate at the base of the 
calyx to which they are appressed ; their figure is widely ovate, concave, divided by a 
very obtuse and oblique sinus, into two small, unequal, blunt lobes (f. 4). 
Stipules (f. 3) small, ovate, approaching to round, furnished at the apex with a deep and 
sharp notch, forming two equal, acute segments. 
The Male Fructification I have but lately seen: as in J. hamatifolia, a single, spherical, 
reticulated Anther is found in each perigonial leaf; the footstalk is short, white, transversely 
striated. 
Female Fructification lateral. 
Calyx (f. 2) large in proportion to the size of the plant, and thrice the size of the leaf, 
obovate, inclining to round, its base slightly attenuated ; five acute, projecting angles 
extend from the apex to the base, and these are always entire : the mouth is considerably 
contracted, and slightly toothed. In color and texture the calyx exactly resembles the 
leaves. 
Gcrmen (f. 5) ovate, green : style rather long, tubular. 
Calyptra (f. 10) ovate, whitish, membranous, reticulated. 
Peduncle but little exceeding the calyx in length, white, cellulose, transversely striated, 
forming nearly quadrate joints, which are again striated longitudinally. Here, too, as in 
J. serpyllifoUa and its associates, the peduncle, when dry, is bent at the joints in a 
zigzag manner. 
Capsule (f. 7 ) precisely spherical, pellucid, white, reticulated, opening into four, equal, 
acute valves, which are only one half of the length of the capsule (f. 9). 
Hie spiral filaments (f. f. 9. 11) are of a brownish color, formed of a double helix loosely 
twisted, enclosed within an extremely delicate tube, and attached by their base to the 
points of the valves in small pencil-shaped tufts. 
The seeds are large, oblong, somewhat angular, of a dark green color, 
Gemma (f. 12) spherical, green, reticulated. 
