(J. barbata.) 
BRITISH JUNGERMANNLE. 
and one to each leaf, which is quite at variance with all we yet know respecting the stipules of 
Jungermanniae. Dr. Smith, too, has described the stipules as entire. 
J. barbata is abundantly distinguished from every other species of the genus, by the shape of 
its leaves, its stipules, and its calyx, when taken in conjunction with the other parts of the plant. Its 
nearest affinity is, perhaps, with J. stipulacea and J Bantriensis mss.; but these have only two teeth 
or segments to the leaves, and the stipules are undivided. In regard to the name, I have preferred 
that of Schreber, notwithstanding that J. quinquedentata is the oldest, and has been sanctioned by 
the authority of Linnaeus. This latter is extremely inapplicable, and can only tend to mislead the 
student; for, I believe that, except by accident or injury, five segments are never seen to exist 
on the leaves of this species. 
REFERENCES TO THE PLATE. 
fig. 
1. 
Male plant, natural size. 
2. 
Female plant, ditto. 
S. 
Sterile plant, ditto. 
4. 
Male plant, magnified 
5. 
Perigonial leaf 
6. 
Anther 
7. 
Sterile plant 
8. 
Female plant 
9. 
Portion of a stem and leaves 
10. 
The same , seen on the under side 
11. 
12. 
Stipule 
13. 
Perichcetial leaf . . . . 
14. 
Section of a calyx, with its pistilla 
15. 
Seeds and spiral filaments . . 
16. 
Gemmiferous apex of a stem . . 
17. 
Gemmce 
18. 
Var. j3, natural size. 
19. 
Individual of the same, magnified 
20. 
Apex of the same 
21. 
Stipule of the same 
22. 
Its gemmce 
