149 
montium editiorum Ins. Juan Fernandez, 1830. D. 
Bertero. 
Radix densissime tomentoso-radiculosa. Caules * in ceespi- 
tem. rosulatum dispositi, basi decumbentes, diaphani, 
glabri," (Bert. in litt.), vix digitem longi, erecti, plerum- 
que simplices, dense foliosi. Folia bifariam imbricata, 
horizontalia, pallide viridia, areolis minutis reticulata, 
biloba, lobis conduplicatis, verticalibus, ineequalibus; 
posterioribus majoribus, pulcherrime ciliato-serratis, an- 
terioribus pagins majoris lobi, versus ejus medium, per 
totam longitudinem affixis, margine superno libero, 
integerrimo.  Stipule in superiore parte caulis prsecipue, 
parvae, subquadratz, appressze, integerrime, apice emar- 
ginate. Anthere axillares in foliis supremis, in globum 
congestz, parvae, sphæricæ, reticulate, sublonge pedicel- 
late. Fructificatio feeminea non visa. 
Tas. LXXVIII. Jungermannia Berteroana. Fig. 1, 
Plants :—natural size. Fig. 2, Extremity of a plant, 
with anthers. Fig. 3, Front view of leaf of the same. 
Fig. 4, Leaf, seen from the back, with stipule. Fig. 5, 6, 
Anthers :—more or less magnified. | 
This belongs to a small and very remarkable groupe of 
Jungermannia, characterized by the lesser of the two compli- 
cated lobes not being attached to the margin of the larger one, 
but arising from the centre of its anterior surface or pagina. 
They are inhabitants of various countries, both intra and extra- 
tropical, and the first that was made known to Botanists 
(J. appendiculata, Musc. Exot. t. 15,) was detected by Mr. 
Menzies at Dusky Bay, New Zealand. J. Thouarsii is a 
native of the Isle of France; J. Blumii and J. aligera 
(Nees von Esenbeck) of Java. Of these, the first is dis- 
tinguished by its pinnatifid leaves; the second, by its ciliato- 
dentate stipules and lesser lobes to the leaves, these latter 
being placed nearer the upper margin of the larger one; the 
third, by its ciliated lesser lobes and stipules; and the last, 
by its truncated lesser lobes. t 
