( J . orcadensis ) 
BRITISH JUNGERMANNIiE. 
Specimens of this plant, which I have lately gathered in various parts of the mountains of 
Savoy and Switzerland, agree in every respect with those of our own country: so that, although I 
have never yet had the good fortune to meet with its fructification, I venture to describe it as a new 
species, thinking myself fully justified in so doing by the constancy of the characters here laid 
down. At first sight, J. orcadensis might be mistaken for a variety of J. barbata ; but it will soon 
be seen, that, in the present species, the stipules are wholly wanting, and that the leaves are never 
trifid. From J. ventricosa it differs in its larger size, in the small obtuse notch of the leaves, and 
in its erect mode of growth ; and from that, and every species to which it is in other respects at all 
allied, by the curiously recurved margins of its leaves. 
I have taken its name from the country in which it was first found. 
REFERENCES TO THE PLATE. 
fig. 
1, 2. J. orcadensis, natural size. 
3. Gemmiferous plant, magnified 
4. Sterile plant, with innovations 
5. Portion of the stem and leaves 
6. Leaf 
7. Leaf, with clusters of Gemmce 
8. Gemmce 
