(J. nemorosa.) 
BRITISH JUNGERMANNLE. 
The strongly dentato-ciliated margins of the leaves in J. nemorosa will readily serve to 
distinguish it from its associates, and especially from J. undulata and J. umbrosa, to which, in 
general habit and mode of growth, it bears considerable affinity. Micheli appears to be the 
earliest writer who has noticed this species, and has twice represented it in t. 8, of his Genera 
Planlarum. This acute observer has also remarked the Gemmae, which he mistook for seeds, 
but his figure of them is by no means accurate. Hedwig has admirably illustrated this part, 
though he has likewise fallen into an error in considering it to be the male flower, from which 
it differs essentially in form, structure, and situation. Dillenius’, t. 71, f. 18, is very characteristic 
of the plant, infinitely more so than his f. 21, of the same plate; which, however, I have 
ascertained, by an examination of the original specimens, to be a variety possessing a purplish 
tinge. Tab. 71. f. 19, also belongs to the same species. 
Dr. Smith and Withering have confounded the purple variety of this species with J. purpurea, 
of Weis (Mnium Jungermannia, Linn.), with which it corresponds in color and place of growth, 
though in every other respect it is widely different. The three figures above quoted, in 
English Botany, unquestionably all belong to the same plant. 
REFERENCES TO THE PLATE. 
FIG. 
1 . 
2 . 
3. 
4. 
5. 
6 . 
7. 
8 . 
9 , 
12 . 
13. 
14 . 
15 . 
16 . 
17. 
18 . 
19 . 
J. nemorosa, y ( male plant ), natural size. 
Female plant, natural size. 
Female plant, magnified, 
Upper extremity of a female plant , seen from behind 
Leaf 
Lower leaf 
Leaf with Gemma; 
Leaf of J. nemorosa, var. y 
10, 11. Anthers and filaments 
Branched filament 
Calyptra 
Abortive pistilla 
Seeds and spiral filaments 
J. nemorosa, var. (3 
J. nemorosa, var. 8, natural size. 
J. nemorosa, magnified 
J. nemorosa, var. 8. leaf of 
6 
5 
3 
5 
4 and 1 
5 
1 
1 
.... 2 
1 
1 
5 
... 6 
... 4 
