HEPATICJ ANTARCTICA. 381 
lines long, very sparingly branched. Leaves patent, usually 
from a narrow base ovate, bifid, very rarely trifid at the 
summit, their sinus obtuse. Stipules about the breadth of 
the stems, divided above into two acuminate entire segments. 
The perigonia are short ovate spikes of closely imbricated, 
ventricose leaves, with minute recurved summits. In plants 
bearing barren perichztia the leaves are more round, and 
increase in size towards the summit of the stem, where at 
length they become perichetial with a shallower sinus than 
in the cauline, than which they are far longer and are sub- 
dentate. 
Exceedingly near the preceding, under the description 
of which the differences are pointed out. 
28. J. multipenna, n. sp.; caule ceespitoso erecto apice inno- 
vationibus binis ramoso, foliis imbricatis concavissimis 
oblongo-rotundatis inequaliter bifidis, segmentis acumi- 
natis margine incurvis subdentatis, stipulis rotundatis 
emarginatis subdentatis concavissimis imbricatis. 
Han. Campbell’s Island. 
Tufts two or three inches high, flaccid, of a sordid purple 
colour. Stems thickened above. Leaves ventricose, inflated 
from the incurvation of their margins, amplexicaul, scarcely 
dentate, sometimes entire, their acuminated segments bent 
in, Stipules nearly rotundate, one margin, often, with the 
dentation more conspicuous than in the other and this on 
alternate sides of adjoining stipules. 
This species approaches, in character, very near to the 
tropical Jung. serrulata, Swartz. It is, however, a larger and 
thicker plant, has the leaves more opaque and of a lurid 
Purple colour, they are besides longer, more erect, and their 
Margins far from being spinuloso-dentate, are scarcely 
toothed. 
29. J. spinifera, n. sp.; caule prostrato implexo subramoso, 
foliis arcte imbricatis erecto-patentibus decurrentibus mar- 
gine recurvis ovato-oblongis emarginatis bidentatis, stipulis 
majoribus subrotundis 6-fidis, segmentis lanceolatis. 
