HEPATICA ANTARCTICA, 467 
28. J. chloroleuca, n. sp.; caule laxé cespitoso erecto sub- 
ramoso, folis subapproximatis erecto-patentibus ex tumidá 
amplexante basi ovatis bipartitis, segmentis ligulatis, summo 
apice bifidis, ciliatis. 
Has. Hermite Island, Cape Horn. 
Tufts loose, greenish-white. Leaves distichous, scarcely 
imbricated, their segments frequently recurved, hence the 
shoots appear somewhat squarrose, especially in the dry 
state; the upper parts of the shoots are pale green, the 
lower with a brown hue. At the tops of the stems there 
is often a cluster of three or four short branches. 
Between this species, J. densifolia Hook., and our J. ver- 
tebralis, there exists the closest analogy, so that they appear 
to belong to a distinct section of the Jungermannie. It is 
chiefly necessary to distinguish the present species from 
J. densifolia (Hook.) by the very different pale green colour, 
by the denser structure of the leaves, which by no means 
exhibit distinctly limited cells, by the greater length of 
the ciliation of the margin of the leaves, their more 
distant position and the minutely bifid tops of their seg- 
meonta 550 ov 
29. J. crebrifolia, n. sp.; caule cespitoso erecto ramoso, 
surculis erectiusculis, folis imbricatis erectis secundis con- 
cavis ovato-rotundatis bilobis, lobis ovatis obtusis integerri- 
mis inferiori minori basi laciniato, calyce laterali obovato 
plicato, ore scarioso laciniato, laciniis lanceolatis. 
Has. Cape Horn. 
Tufts thick, reddish-brown. Stems nearly two inches 
long, brittle when dry, irregularly but repeatedly branched ; 
branches becoming a little wider towards the tops. Leaves 
closely imbricated, remaining erect when moistened, their 
upper lobe the larger, the lower at the base often crossing 
the stem, and having therea very minute lobe or large lanceo- 
late tooth. Calyces minute, scarcely observable and looking 
like slight projections on the sides of the stems; they have 
Whitish scariose mouths. 
This is closely allied to Jung. cryptodon (Wilson's MSS.), 
2m 2 
