BRITISH J UNGERM ANN IiE. 
(J. concinnataj 
figure in Mora Danica is good, except that the terminal or perichaetial leaves are not repre- 
sented as imbricated on all sides, and something like a calyx is there given as rising above 
the leaves, which I have never been able to observe in the many specimens that have come 
under my observation. Roth also describes a calyx <f in caule vel ramis terminalis, mono- 
phyllus, tubulosus, truncatus probably mistaking the inner perichaetial leaf, as I myself did 
at first, for a true calyx. I however was afterwards induced to be of a different opinion, and 
in various dissections have uniformly found this species to possess, instead of the calyx, an 
inner and tubular perichaetial leaf, as above described. If I have not been deceived in my 
examination of this species, by the minuteness of the object, the absence of a real calyx in 
this plant may be considered as connecting it more closely with the order of Musci, and 
especially with the genus Andraa, to two of the species of which (A. rupestris and alpina ) 
it approaches, also, in habit and ramification. 
REFERENCES TO THE PLATE. 
FIG. 
1. 1, 1. Barren plants of J. concinnata, natural size. 
2. Female plant, natural size. 
3. Female plant magnified 
4. Portion of the stem and leaves 
5. Leaf 
6. 6. Exterior perichatial leaves 
7. Interior perichatial leaf 
8. Extremity of a fructified stem, with a portion of the inner perichatial 
leaf, calyptra, peduncle, and capsule 
6 
4 
2 
3 
3 
4 
fc 
