( J . ncmorosa. J 
BRITISH JUNGERMANNIvE. 
Hab. In woods, on hedge-banks, and among rocks. — /3, on the Scotch mountains abundant, 
chiefly in much exposed and very moist situations.' — Rivulets and bogs on the 
mountains of North Wales. Mr. Griffith. — Mountains near Bantry. Miss Hutchins. — 
About Keswick. Mr. Lyell. — y was found by the Rev. R. B. Francis, in Wales. — 
S grows, intermixed with a, in woods and heathy places. — At Edgefield. Rev. R. B. 
Francis. — Woods near Norwich. 
Obs. The fructification is observable during the greater part of the summer months, 
among the mountains. 
Plant growing for the most part in densely-matted tufts, of two or three inches in diameter. 
Root , a few minute pellucid fibres, proceeding in bundles from the lower part of the stem. 
Stems erect, varying from one to three, or even four inches in length, about the tenth of 
a line in diameter, generally of a dirty brown color, but sometimes a yellowish red, and 
occasionally in wet situations becoming quite black, twice or thrice divided in an 
irregularly dichotomous manner; besides which, they also produce innovations, which 
are, like the parent branches, ilexuose and filiform. 
Leaves (f. f. 5. 6. 7) bifarious and distichous, rather loosely imbricated, patent, their 
margins strongly dentato-ciliate; at the base of the plant they are the smallest, being 
there scarcely half a line in length, but they gradually increase in size as they approach 
the extremity, where they are nearly one line long; they are semi-amplexicaul, 
decurrent, divided to within one third of the base into two unequal conduplicate lobes *, 
of which the superficies is parallel with the stem, and, consequently, vertical with 
regard to the horizon; the lower one is twice the size of the upper, obovate, more 
oi' less acute, slightly convex above, and appressed to the under side of the stem; 
the upper lobe or lobulus is subcordate, obtuse, a little convex, with its base embracing 
the stem, so as entirely to conceal it in those parts where the leaves are at all 
crowded; their texture is delicate; the cellules (f. 5) compact, very minute, roundish; 
the color a pale yellow green, more or less inclining to blown ; in /3, a deep purple. 
/ eri gonial leaves closely imbiicated, and much resembling the cauline ones, except that 
their base is more ventricose, and their apices always recurved. 
The perichatial leaves differ from the rest only in being of a larger size, and in having the 
margins frequently recurved. 
Male Fructification. Anthers (f. f. 9. 10. 11) situated in the axilla; of the perigonial leaves, 
ovate or roundish, when perfect of an olive-green color, but appearing, after the discharge of 
the pollen, a pellucid, reticulated, extremely delicate membrane. Each is situated on a 
transparent, transversely striated footstalk, which scarcely exceeds the anther in length. In 
* It was my intention to have adopted the term auricle for the upper and generally lesser division of the leaves, in 
this species and its affinities, in compliance with the Linnrean terminology. So little, however, does this part differ, in 
one or two of the species, from the lower lobe, that it appears to me I shall render my descriptions more simple and 
intelligible, by considering the leaves in question as divided into two lobes, which are either equal in size or unequal. 
In the latter case, the larger one may be termed lotus, and the smaller, lobulus, as suggested by Dr. Smith in English 
Botany, P- 22., 1. The word auncle, might, I think, with more propriety, be confined to those lesser divisions of 
the leaves of Jungermannise, which, in every part of the plant, essentially differ, in figure and size, from the larger 
division ; remarkable instances of which may be seen in J. Hutchinsice, J. Tumarisci, and J. dilatata. Yet, even in 
the species ot this very natural division of the family, the auricles of the perichaetial and of the young terminal leaves 
sometimes form an exception to this rule. 
