fj. Turned .) 
BRITISH JUNGERMANNL®. 
Perichcctial leaves (f. f. 0 . 7 ) closely imbricated on all sides of the calyx, and differing from 
the cauline ones in being of a quadrate figure, frequently broader than they are long, and 
in being cleft for only about one third of their length, into three or four ovate, acute, 
spinuloso-dentate, erect segments. 
Male Fructification unknown. 
Female Fructification terminal upon thesurculi. 
Calyx lineari- oblong, about one third or even half a line in length, longitudinally, yet 
slightly, plicate or obtusely angular; in a young state a little incurved, at a more advanced 
period, erect; its color almost white, having, however, generally, a yellowish tinge. 
The cellules are oblong, and, as in the rest of the plant, rather distantly placed. 
Germen (f. 8) ovate, attenuated at the base, tipped with a short style. 
Calyptra (f. 9) ovate, reticulated, brownish-white. 
Peduncle a quarter of an inch long, white, succulent, cellulose. 
Capsule (f. 10) ovate, brown, splitting into four valves of equal size. 
Seeds and spiral filaments (f. 11) fulvous; the former spherical and smooth; the latter 
composed of a double helix. 
Throughout the progress of this publication, I cannot promise myself a more grateful task, than 
that of dedicating a small but most elegant, species of my favorite genus to Dawson Turner, Esq., 
as a memorial of the great and undiminished kindness which I have for many years received from 
him. To his friendly advice and instructions the present work is indebted for whatever merits it 
may possess. J. Turned has hitherto been found alone in the neighborhood of Bantry, and is one 
of the many interesting additions that have been made to the Cryptogainic Flora of the British 
Isles, by Miss Hutchins. It is not a little remarkable that this is the second species of 
Jungermannia, discovered by this lady, that is distinguished from all the rest of its affinities (which, 
in the present instance, I need hardly say, are J. bicuspidata, J. byssacea, Stc.) in having the leaves 
dentated in a very conspicuous and strikingly beautiful manner: the former plant of this 
description is J. Hutchinsice, represented on the first plate of this Monograph; and I have, on this 
account, the greater pleasure in affixing to the species the names of two botanists, who have alike 
rendered themselves celebrated by their knowledge and discoveries. 
Besides the dentate leaves, there is another peculiarity possessed by the present plant, that I 
have not observed in any other of the genus : this is in the large cellules with which the whole of 
the foliage and surculi appear to be studded, in the same manner as the leaves of Dicranum 
puhinatum and a few other mosses; for, though these are distantly placed, they are, nevertheless, 
arranged in longitudinal and parallel lines. 
