( J. pinguis.J 
BRITISH JUNGERMANNOE. 
base, where they are one or two lines in diameter, thence gradually widening to the 
extremity, which is rounded and obtuse, and three or four lines in width : they are either 
simple, or furnished with one or more large divisions or segments, (which, in every re- 
spect, resemble the principal part of the frond) and other lesser ones, which give the 
appearance of a sinuated margin; the whole, though plane, or even a little concave 
above, is below so swollen, that many individuals are half a line, or even a line in thick- 
ness, and are always destitute of any nerve: substance carnose, remarkably succulent, 
opaque: cellules numerous, small, and not readily discernible: color more or less of a 
yellow green. 
Male Fructification (f. f. 4. 5. 6) situated in the superior surface of small marginal processes 
or receptacles, eight or ten or more of which occupy the upper half of a frond ; each of these 
is simple or two-lobed, convex beneath (f. 5), plane above (f. f. 6. 7). In the upper and plane 
surface, the substance seems to be of a paler color, and more closely cellular than the rest of 
the plant : the anthers are so deeply imbedded, that their apex alone is level with the superficies, 
and is visible by means of a little opening. They are spherical, reticulated, greyish, situated 
upon a very short footstalk : by the shrinking up of the cuticle, after the discharge of the pollen 
from the Anthers, the apertures, which they previously filled, are now nearly empty. The re- 
ceptacles themselves, in all probability, after their office is performed, expand into segments of 
the frond. 
Female Fructification (f. f. 1. 2. 18. 19) originating in various parts of the under side of the 
plant, but always near the margin. 
Calyx (f. f. 18. 19) nearly hemispherical, much resembling that, of J. multifida, and having 
an expanded mouth and fimbriated margin : its substance is cellulose, like that of 
the frond. 
Pistilla (f. f. 19. 20) seven or eight in number, small, nearly ovate, with a somewhat 
dilated mouth, jagged and a little bent back ; they are of a greyish color, marked, 
longitudinally and transversely, with darker lines. 
Calyptra (f. 10) three, or even four lines long when arrived at its full size, lineari-oblong, 
cylindrical, nearly of the same thickness throughout, strait or a little waved and curved 
at the base, obtuse at the end, sometimes having a short style. Its texture is succulent, 
closely cellulose : its color a very pale greenish yellow, approaching to white. 
Peduncle from two to three inches long, whitish, cellulose. 
Capsule oblong, red-brown, marked with numerous striae or furrows, which are connected 
by transverse ones. It opens into four equal lanceolate valves, which reach to the base 
of the capsule, and contain at their apices the 
Spiral filaments in the form of tufts or pencils: these are formed of a simple closely-twisted 
helix, attenuated at each extremity, of a fulvous color, as are the seeds, which are, 
moreover, spherical and smooth*. 
1 he var. ft has a singular appearance, at first sight, from the narrowness of the fronds, and more 
so, when it is found branched, from the pinnated disposition of the segments. Some of the 
smaller individuals are not more than equal to the calyx in size. 
! ' ’ l lowever , seems to have discovered them to be otherwise. “ Per lentem sumrm' augentem ex croceo 
parent, formamque sph*ricam, aliquantum irregulaiem, superficicmque venis rotundis reticulatam offerunt.” 
leones, p. 139. 
