HEPATICU ANTARCTICA, 479 
Fronds nearly three inches high, pea-green in the younger 
and upper part, blackish below, two or three times dichoto- 
mous ; the nerve in the dried state is very thin and whitish, 
but when the frond is thoroughly moistened, it swells and 
becomes of the same colour as the rest of the frond, while 
the lobes become concave or channelled ; the branches sepa- 
rate at an acute angle. New fronds issue from the sides of 
the old by a bursting of the cuticle of the latter; such new 
shoots have rounded bases, which immediately send down 
roots; probably they separate in time, and continue an inde- . 
pendent existence. 
From our J. tenuinervis of New Zealand, the present 
may be known by its yellower green colour, its narrower 
lobes, which, too, are more elongated, by its taller size, but 
above all by its erect growth, in which respect, too, it widely 
"ym from its congeners, J. Hibernica Hook. and J. Lyellii 
ook. 
(Aneura, Nees v. Esenbeck.) 
59. J. multifida, L. reed 
Has. Falkland Islands. Cape Horn. 
60. J. pinguis, L. 
Has. Hermite Island, Cape Horn. 
61. J. alcicornis, n. sp.; fronde cespitosa erecta lineari al- 
— ternatim atque bipinnatim lobata, lobulis, linearibus brevi- 
bus subtruncatis, calyptris lateralibus linearibus albidis 
scabrosis, apice laceris. 
Han. Cape Horn. 
Fronds tufted among other Hepatice, or Musci about one 
inch high; the younger parts of a lively grass-green, the 
lower and older brownish, and turning black in drying. The 
lobules rise to nearly the same level, consequently the lower 
branches have a dichotomous appearance ; the lobes. are 
widest where they are about to divide into lobules ; these are 
linear, short, and end abruptly. The Calyptre issue from 
the sides of the plant, and rise to such a height that their 
tops come on a level with the tufts of fronds ; the calyptre 
are very long, pale, carnose, and rough with projecting 
