458 HEPATIC ANTARCTICA. 
large and reddish-brown and so assume the appearance of a 
short wide nerve. 
The present is related to Jung. biserialis, L. et L. from 
Van Diemen’s Land. It is, however, not above one fourth 
the size, has more minute denticulations to the leaves, which 
are widely ovate, not round and decurrent at the anterior 
margin, besides the stems are not strikingly flexuose as in 
that species. 
8. J. duricaulis, n. sp.; caule laxe ceespitoso erecto ramoso, 
foliis subimbricatis patentibus semicordatis subdecurren- 
tibus basi postica ventricosa, margine inferiori recurvo 
utroque denticulato. 
Has. Common in woods, Hermite Island, Cape Horn. 
In loose tufts, of a pale but dusky olive-green. Stems 
four inches high, irregularly branched; shoots when moist 
subcompressed. Leaves but little imbricated, the ventri- 
cose portions of the opposite pairs meet behind and form a 
crest; the inferior margin is recurved with a round fold, the 
superior is rather incurved behind the stem; all round, the 
leaves are minutely denticulate, the leaves are one eighth - 
of an inch long. The perigonium is a short terminal spike. 
This approaches very near to Plagiochila flaccida (Lind.) 
from St. Vincent’s which has almost an equally hard and 
ligneous stem, but may be known by the greater breadth of 
the branches and leaves, by its more compound ramification 
and by the more minute denticulations of the leaves. 
9. J. sphalera, n. sp.; caule cespitoso erecto apice incurvo 
basi ramoso, foliis subimbricatis erecto-patentibus siccitate 
secundis madore subdistichis ex angusta basi obovato- 
rotundatis, margine superiori incurvo integerrimo, inferiori 
planiusculo dentato. 
Han. Cape Horn. 
Tufts rather loose, of a diluted olive-green. Stems hi 
inches high, dividing often at the base, into two or three - 
branches; the tops round, flattened and curved. Leaves: — 
when moistened, although still somewhat secund, yet spread- 
ing from the stem, somewhat recurved at their tops, 10051 
