570 HEPATICA NOVÆ ZELANDLE, &c. 
of two kinds, the one enclosing the other, will readily distin- 
guish the present from Jung. Hibernica, Hook. 
38. J. cladorrhizans, n. sp.; fronde implexa prostrata simplici 
ad apicem radicante lineari-acuminata margine undulata 
integerrima nervo percurrente, calyce duplici exteriori (seu 
perichetio) breviter squamoso squamis exterioribus den- 
tatis interioribus laciniato-ciliatis interiori majori lineari- 
lanceolato acuminato ore parvo ciliato. 
Has. New Zealand, Mr. Colenso. 
Patches loose wide, very pale green in the younger parts, 
pale olive in the older. Fronds a little more than an inch 
long, lanceolate, acuminate into an elongated point consist- 
ing almost entirely of the nerve, and radicating at the sum- 
mit, and thence in the following season sending out new 
fronds. The nerve is whitish and stout though slender. The 
perichetium or outer calyx occurs at the base of the frond 
and on its inferior side, it is attached to the nerve; there 
are often three together, its exterior scales are rotund and 
deeply toothed, the interior scales are united at their bases, 
and have setaceous ciliz which are jointed; from the centre 
of these issues the true calyx, large in proportion to the size 
of the frond, slightly bent upwards, pale flesh-coloured, its 
mouth laciniated, and the lacinie elongato-ciliate. 
This species approaches Jung. Hibernica, Hook. and Jung. 
Lyellii, Hook., from these, perhaps, it would be difficult to 
distinguish its barren fronds, but the calyces of the present 
arising from the under surface, themselves greater, curve 
and coloured and the more compound perichetia are marks 
of grave distinction. ? 
39. J. tenuinervis, n. sp.; fronde tenui prostrata lineari dicho- 
toma nervo gracili percursa margine dentata. 
Has. New Zealand, Mr. Colenso. 
Fronds scarcely two inches long, pea-green, linear but 
slightly broader at their tops, where they are bilobate with à 
a very shallow sinus. The substance is thin, the cellules 
distinct, the nerve pale yellow, very slight and opaque 
having on each side longitudinally a series of denser and 
