328 NEW MUSCI AND HEPATICÆ. 
species, and a very full Index at the end. The specimens —— 
are well preserved, and so neatly laid down that the effect is | 
more like a series of drawings than specimens of plants 
themselves; while, to add to the value of the collection, they 
are all grouped into the recent Genera of Nees von Esenbeck — 
and the most approved writers on this family of Plants. 
The old genus Jungermannia is here divided into 31 Genera, 
Marchantia into 4: Targionia, Spherocarpus, Anthoceros and 
Riccia stand as formerly. The number of species enumerated 
is 136. Of course every compartment cannot be expected - 
to be occupied: a few species are so rare that the author has 
probably scarcely had specimens in his possession: of others 
he has been able to procure but few specimens, not sufficient 
for all the copies. But it is surprizing how successful Mr. 
Mc. Ivor has been in his researches, and we are sure that 
this “ Pocket Herbarium” will be hailed by every lover of - 
Cryptogamic Botany, both on the Continent and in our 
own Islands. Of the price we have not yet been informed, 
but we have reason to know it will be moderate, and that @ 
guinea will be the utmost sum fixed on for the most perfect 
Copies: less, in proportion to the reduced number of pere 
for the others. The work may be had by applying to 
Mr. Me. Ivor, Royal Gardens, Kew, London: and we me 
observe that the volume is of such size that a small -— 
. will cover the postage to any part of the British dominions. 
of New Muscr and HEPATICE, C 
E; son WILLIAM JAMESON. on Pichim 
Tuomas Taviog, MD. |. 
Agnostic marks are assigned, were freshly c 
November last, and transmitted to the author in a let 
received, in the expectation of their immediate 
fon. This is a sufficient reason why he has not 
sed all the Herbaria of all European Muscologists 
