( J. sphcerocarpa.) 
BRITISH JUNGERMANNIiE. 
Much as this species is allied in general habit, and in the foliage, to J. scalaris and J. crenulata, 
yet it may be at once distinguished when in fructification, from the former, by the exserted calyx, 
and from the latter, by this part being entirely free from angles, and by the four large teeth 
at its extremity. In the remarkably spherical shape of the capsule, it differs from both; and 
equally from J. pumila, which is moreover a much smaller plant, and has the calyx acuminate, 
plicate, and toothed, not quadrifid. 
We are indebted to Mr. Lyell for our first knowledge of this plant, which Dr. Taylor soon 
after discovered in Ireland. 
REFERENCES TO THE PLATE. 
TIG. 
1. J. sphcerocarpa , natural size. 
2. Fertile plants, magnified. 6 
3. A sterile plant 6 
4. A portion of the stem and leaves 3 
5. Calyx with the capsule unopened 4 
6. Section of the calyx, shewing the Germen 5 
7- Capsule bursting and discharging its seeds 3 
8. Seeds and spiral filaments 1 
