BRITISH JUNGERMANNIJE. 
Xr 
( J. dilalata.) 
ment to the anthers, are destined, in all probability, like the fruit-bearing ramuli of many 
species of Fucus, to form with their leaves larger ramuli, and such as are produced in other 
parts of the plant. This at least is certain, that in those among them in which are found 
anthers past perfection and fast approaching a state of decay, the leaves appear in full vigor 
and of an equal freshness with the common cauline ones. 
The male fructification, it ought to be remarked, may be seen on the same individual as 
with the female, though it is by far more abundant on separate plants. So that, in this 
instance, as I have also had occasion to observe in some others, the genus is to be considered 
both monoecious and dioecious. The greater number of anthers, in the month of March, had 
performed their destined functions, in the discharge of the pollen : so, too, had the greater 
number of capsules ripened and dispersed their seeds. 
Of the synonyms above quoted I dare not venture to speak with confidence of any, except 
that of Schmidel. I think, however, I am correct in those of Engl. Botany, Roth, and 
Schreher. 
REFERENCES TO THE PLATE. 
FIG. 
1. 1. J. dilatata, natural size. 
2. The same magnified 
3. Extremity of a fertile shoot, lower surface .... 
4. Leaf and auricle ■ 
5. Stipule 
g. Portion of a surculus, with auricles and stipules 
7. Perichcetial leaf and auricles 
8. Calycine stipule 
9. Portion of a surculus, with male fructification (?) 
10. Anthers (?) 
11. Upper surface of the calyx 
12. Under surface of the calyx, with the capsule 
13. The same with the capsule expanded 
The same in the act of dispersing its saeds . . . . 
15. Inside of a portion of the calyx 
16. Calyptra and lower part of the peduncle 
17. Germen, with its style and a barren pistillum 
18. Style 
19. Inside of an expanded capsule 
20. Seeds 
21. Spiral filaments, enclosed in their tubes 
6 
4 
3 
... 3 
4 
3 
3 
4 
3 
3 
3 
3 
2 
.... 1 
2 
2 
.. .. 1 
2 
2 and 1 
1 
