( J. ciliaris.J 
BRITISH JUNGERMANNIiE. 
or subquadrate figure, distinctly divided into two, unequally-sized, conduplicate lobes ; of 
which the upper one is the largest, very convex on its upper surface, and cleft, for about 
half its length, into two, rather acute segments ; the lesser lobe, which is nearly plane, 
and not more than one third of the size of the other, is in like manner divided into two 
lanceolate and acute segments : the whole are elegantly bordered with long, capillary, 
flexuose cilia, which I have, in two or three instances, observed to be forked, and which 
are, throughout their whole length (f. 5), jointed in the same manner as the filaments of 
a Conferva. The cellules of the leaves are roundish and closely placed. The color is, in 
sheltered places only, a brownish-green 5 in exposed situations a purplish-brown, generally 
deeper towards the extremities. 
Stipules (f. 6) of a widely quadrate figure, broader than the stem, to which they are 
appressed ; at the end unequally lobed, and there, as well as along the whole margin, 
bordered with closely-placed, long cilia, narrower than those of the leaves, to which, in 
other respects, they are similar. 
Perichatial leaves (f. f. 7- 8); of these two or three are placed at the base of each calyx, and 
closely appressed to it. They are widely ovate, cut into two or three unequal segments, 
and ciliated along their borders. 
Male Fkuctification at present unknown. 
Female Fructification lateral upon the pinnulas, near the middle of which they are usually 
situated. 
Calyx of a more thin and delicate texture than the leaves, of an obovate form, having the 
mouth small, much contracted, and beset with small unequal teeth (f. 9). 
Germen (f 9) ovate, style long. 
Pistilla (f. 10) numerous, surrounding the base of the germen, lineari-lanceolate, expanded 
at the mouth, of a pale greyish color, streaked longitudinally and transversely with darker 
lines, and having also a few reddish streaks. 
The capsule and spiral filaments I have not had the opportunity of seeing myself, and there- 
fore have copied the description of them from Hoffmann, who describes the former as being 
ovate, approaching to round, of a deep brown color, and the latter, as well as the seeds , of 
a subfuscous color. 
1 he present very elegant species, which is not only common in this country, and upon the 
continent of Europe, but has even been brought from Greenland, according to Dillenius, is likewise 
lound at Kamtchatka by Dr. Tilesius, and has been by him communicated, with some other well- 
known European species of Jungermanniae, from that country, to Mr. Dawson Turner. Yet, 
abundant and general as it is, it was unknown to the botanical world till Dillenius figured and 
described it in his Historia Muscorum. The name of ciliaris was adopted by Linnteus, who, from 
in g a "long refeience to Vaillant and Dillenius, has led subsequent authors into an error, and has 
been the means, if not of causing Weber, Weis, Hudson, Lamarck, and Withering, to mistake 
./ tomentella tor J. ciliaris, at least of leading them to confound the two species ; for the descriptions 
of many of the above authors will apply equally to either. 
