398 HEPATICA ANTARCTIC. 
_ three pieces, the two lateral upright, concave, obtuse, each 
having an acute lobe on the inner side, the third or stipular 
leaf is from a narrow base oblong, bifid, in all respects 
like a magnified stipule. The calyx opens by four lacinie, 
which before emission of the capsule lie close together and 
form a short tube. Capsule, as seen when removed out of 
a calyx, spherical, pale-brown, the valves not divided down 
to the base. Seeds very large in proportion to the capsule, 
and consequently comparatively few, very angular; spiral 
filaments very few, in diameter not one third of that of the 
seeds. 
Jungermannia ulicina, Tayl., which has sometimes been 
taken for Jungermannia minutissima, Smith, bears strong re- 
semblance to the present, especially in its preferring other 
moist mosses on which to grow. The Irish plant, however, 
is distinct by its less size, the greater cells of its leaves, 
which are subacute, whilst their lobulus has a sharp process 
or tooth at the point of its involution, by the more divided 
stipules, whose segments are more acute and by the recurved 
pericheetial leaves. : 
65. J. Mimosa, n. sp.; caule implexo repente ramoso, foliis 
imbrieatis patentibus concavis acinaciformibus integer- 
rimis apice recurvis, lobulis ovatis involutis, stipulis ovatis 
acute bifidis, calyce elongate—obovato pentagono ore con- 
tracto tubifero. 
Has. Lord Auckland's group. 
Patches minute, dusky olive, Stems about half an inch 
long, irregularly branched. Leaves somewhat recurved, 
so appearing scymitar-shaped ; the Jobulus is oval and erecto- 
patent: the structure of the leaves is very dense. Stipules 
scarcely wider than the stems. The lateral perichetial 
leaves wide, oblong, quite entire, concave, with recurved tops» 
the third or inferior leaf is in all respects like the stipules, 
except that it is more elongated and more concave. — 
perigonia are lateral, short, obtuse spikes, directly placed on 
the stem, their leaves are short, roundish, tumid and very 
closely imbricated. Calyces from a narrow linear base obo- 
