(J. pumila. ) 
BRITISH JUNGERMANNOS. 
say. The texture of the leaves is thin and delicate; the reticulation small, roundish; 
the color a pale yellowish green, changing in different situations to an olive green 
and even to a brownish black. 
Perichcetial leaves not differing from those of the other parts of the plant, except that 
the two uppermost pair are the largest of all, and are more uniformly erect in their 
position (f. f. 3. 4. 9). 
Male Fructification unknown. 
Female Fructification terminal, though it may now and then have the appearance of being 
lateral, in consequence of the elongation of a shoot immediately beneath it (see f. 9). 
Calyx (f. 4) large in proportion to the size of the plant, somewhat exceeding three 
quarters of a line in length, and one quarter of a line in diameter in the widest part. 
It is lengthened out at the base, largest in the middle, and acuminated at the 
extremity, where it is slightly plicate. The mouth is small, contracted, and beset with 
minute teeth of unequal sizes : its substance and color exactly resemble those of the 
leaves. 
Calijptra (f. 5) ovate, white, strongly and elegantly reticulated, at the apex tipped with 
a short tubular style; at the base surrounded by a few barren pistilla. 
Peduncle from two to two and a half lines in length, white, glossy, transversely and 
longitudinally striated. 
Capsule ovate, deep brown, dividing into four equal segments (f. 3). 
Seeds brown, spherical, smooth. The spiral filaments, are of the same color, and composed 
of a double helix (f. 6). 
My Var. /3. might at first sight be taken for a distinct species. A patch of it has a very dark and 
almost blackish hue, though, viewed singly, an individual plant, especially when held against 
the light, appears of an olive-green color. The leaves are more distantly placed than those of 
“ : they are, too, smaller, more inclining to oblong, and universally horizontal. The stems 
are slender and more branched, and, as observed above, frequently throw out young lateral 
shoots. 
This Jungermannia was first discovered in Wales by Mr. Griffith, and by him sent as a new 
species to Di. Witheiing, in whose work an imperfect figure and description are given. Without 
at all meaning to contradict these gentlemen as to the plant being really a nondescript, I find it 
so well accord with the Dillenian plant, figured t. 70. f. 10. a. b. c., that I have thought it right 
to refer to that author, though not without a mark of doubt. Linmeus refers to this synonym 
his J. lanceolate, fiom which the authentic specimens in the herbarium at Oxford prove it 
to ic quite different. These in the calyx, which is most remarkable, exactly correspond with the 
presen plant, and the leaves, too, seem to bear an equal resemblance, as far as can be judged 
iom the very injured state in which they now are. The figures, however, of Micheli, quoted by 
Dillemus, certainly belong to J. lanceolate. 1 y 
