( J. hyalina.) 
BRITISH JUNGERMANNm 
Calyptra (f. 10) ovate, membranaceous, reticulated, tipped with a short hollow style. 
Peduncle a quarter or half an inch long, white, striated. 
Capsule (f. f. 6. 11) ovate, broad, approaching to round, of a deep brown color, furrowed 
both longitudinally and transversely. 
Seeds and spiral filaments (f. 12) chocolate colored j the former spherical, the latter composed 
of a double helix. 
Obs. The texture of the leaves in J. hyalina is exactly similar to that in J. cordifolia, and their 
position and habit often bear great resemblance to those of that plant, but their figure never 
approaches to cordate. In general shape and position, they are by far more like the leaves of 
J. scalaris, as well in its plane as waved state j but in their texture nothing can be more different. 
The fruit is, strictly speaking, terminal, as in J. pumila, a near, though diminutive, relation 
of our plant, as the bend in the stem, whenever the fruit appears lateral, indicates that it is 
seated between an older and a younger shoot ; but calyces so placed, and also terminal ones, are 
observable nearly of the same age on the same plant. Lyell’s M. S. 
To the above excellent character and description of J. hyalina, for both of which I am indebted 
to my friend, Mr. Lyell, by whom they were made from fresh specimens, it is needless for me to 
add any thing, except my hearty concurrence in his opinion, that the plant is decidedly distinct 
from the species just mentioned, as well as from every other in the genus. 
REFERENCES TO THE PLATE. 
FIG. 
K 
Male plant, natural size. 
2. 
Female plants, natural size. 
3. 
Male plant, magnified 
4. 
Anther 
5. 
6. 7. Female plants, magnified , . 
8. 
Leaves 
9. 
Calyx, with peruhatial leaf... .. 
10. 
Calyptra 
11. 
Capsule, not yet open . 
12. 
Seeds and spiral filaments . . 
