182 BOTANICAL INFORMATION. 
only be appreciated by those who have undertaken to study 
the individuals of this extensive and fugacious family of 
Plants. Happily our able friend, the Rev. M. J. Berkeley, 
undertook to prepare, and has now completed, the Agaric 
and Boletus tribes, which he has long made a peculiar 
object of study. 
At the moment this page is going to the press, we have the 
. . * 
pleasure to receive from our valued friend Mr. Scheerar,* the — 
9th and 10th Fasciculi of his ** Lichenes Helvetici Exsiccati,” 
a work of the importance of which we have elsewhere spoken, 
especially in the English Flora (v. V. Part I. p. 140), together 
with the fourth and fifth sections of his * Lichenum Helveti- 
corum Spicilegium," which accompany them as the illustra- 
tive descriptions. The work now embraces 250 species, of 
which the specimens are most excellent, and arranged in a 
remarkably neat and judicious manner, in small 4to. volumes, 
of which one part forms a sort of box, for the reception of 
those species which require a thicker portion than usual of 
the rock or substance on which they grow. In this they 
are fastened, along with their names, by means of strong 
glue. The similarity of the Swiss Lichens with those of 
Britain, the correct manner in which they are named and 
characterized by the able author, render this work of the 
highest consequence to the student of Lichens in this country; 
and we learn with pleasure that a few copies have been sent 
to Mr. Ackerman, in the Strand, for sale. 
5 * Lewis Emanuel Scheerar, Minister of Lauperswyl in the Canton of 
erne. 
WEEDS a ANO DIST T VIENNE di 
