HEPATICIE ANTARCTICA 373 
Has. Lord Auckland's group. 
Tufts several inches in diameter, dusky straw-coloured. 
Stems nearly one inch long, sparingly branched with one or 
two annual shoots. "The lower leaves sometimes present but 
a single tooth on the margin, otherwise they are uniform, 
rounded above and slightly decurrent in front. The calyx 
has a long, very narrow base quite naked of leaves, it rises 
Obovate, and is terminated by a narrow almost tubular mouth, 
it has four or five quite distinct rugged ribs of which two 
Opposite to each other are more opaque, the old calyx 
splits down on two opposite sides, the pericheetial leaves are 
similar to the cauline. 
In the Peruvian Plagiochila gymnocalycina, Lind., the 
ey X, equally naked below,is smooth and quite destitute of 
ribs; its leaves are more serrated and the plant is of a larger 
Size, 
M. J, fuscella, n. Sp.; caule laxe cespitoso adscendente vage 
ramoso, foliis imbricatis erecto-patentibus rotundatis, sic- 
citate verticalibus madore subdeflexis, margine anteriore 
Tecurvo subdecurrente, posteriore minutissime subserru- 
to, calyce terminali obovato truncato deflexo foliis peri- 
. Cheetialibus breviore. 
Han. Lord Auckland's group. 
Tufts wide, dark brown or nearly black. Stems one and a 
f inches high, curved at the very summits. Leaves round, 
slightly decurrent in front, but recurrent or turning up 
meet the stem at the base of the posterior margin; in 
/; BB. the margin is entire, but in those nearest to the 
Summit most minute denticulations may be observed with 
lens, 
This species is far larger than Plagiochila pusilla, Mon- 
tagne, has not the stem curved, and its leaves are much more 
minutely denticulate. A very few calyces were observed, 
4nd found to be shorter than the perichetial leaves and con- 
e by them. Some were proliferous, i.e. one or two 
Young shoots proceeded from their bases within and issued 
