BRITISH JUNG E R M ANN LE. 
(J. crenulata J 
supposed, by those who have not the opportunity of tracing it to perfection, to belong to 
a different species. The mouth is much contracted and sometimes even prominent, 
always irregularly toothed. The color and texture correspond with those of the leaves. 
Calyptra (f. 8) thin, delicate, of a pale yellowish- brown color, elegantly reticulated, and 
terminated by a short style. 
Peduncle half an inch or more in length, white, pellucid, cellulose. 
Capsule (f. 9) ovate, approaching to spherical, of a deep, shining brown color, longi- 
tudinally and transversely furrowed. 
Seeds and spiral filaments (f. 10) of a fulvous color; the latter are formed of a double helix, 
and adhere, after the discharge of the seeds, to the margins of the valves of the capsule: 
the former are spherical. 
The var. fi , J.gracillima of Engl. Bot. is smaller in all its parts than a; the stems, too, are more 
lengthened and slender, and are furnished with very minute, distantly-placed, and more ovate 
leaves, at least on the barren shoots; for the fertile ones differ in no respect from those of a; 
like them, too, being very distinctly bordered with large, quadrate cellules, whilst in the rest 
this appearauce is far less observable. 
The present species, which belongs to that division which may be called “ Exstipulatce, foliis 
distichis, integris," is at once to be distinguished from the rest of the same tribe, by its qua- 
drangular calyx, and its curiously marginated leaves. In some of these, however, as has been 
already remarked, especially of the car. /S, the border is obscure, and they then bear no small 
affinity to those of J. scalaris, from which, at the same time, the want of stipules will always keep 
the plant distinct, even should the fructification be wanting, which is totally different in the two 
species in question. Leaves of the kind just mentioned have some resemblance in figure to those 
of J. pumila and J. lanceolata, but, besides that these last are always of a more delicate texture, 
their far greater size, in proportion to the diameter of the stem, and their more crowded mode of 
growth, will prevent them from being mistaken for those of J. crenulata. As I am not aware that 
there is any other species that is at all likely to be confounded with the present, it will be 
unnecessary for me to say more on its specific characters. With regard to J. gracillima of English 
Botany, the sterile plants have a very peculiar appearance; but the true mark of the species will be 
found in the fertile shoots, and I am particularly happy to be able to add, that Mr. Lvell, who 
has been at great pains in examining and comparing the two, and long thought them distinct, now 
perfectly coincides with me in considering them merely as varieties of each other - . /3 may often 
be found with a, as well the intermediate states of the two. 
Boggy places in various parts of the united kingdom produce this pr etty plant. Mr. Francis 
has for many years remarked it in the neighborhood of his residence ; but Mr. Borrer’s specimens, 
found in Sussex, are those that have been first published. These grow to a larger size than the 
Norfolk plant. No author but Dr. Smith has noticed the species ; nor, indeed, does it appear to be 
an inhabitant of the continent. 
REFERENCES 
