( ) 
4ill:inc5lion of the genera; in which the cha- 
racter being obvious and clear conftitutes the 
excellence of it. It is, however, very de- 
firable, that fuch refearches fliould be made, 
It is a decided fact, that fungufes continue 
their fpecies by a powder, which is vifible 
in the gills of many of them, and which is 
generally allowed to be feed. Some fpecies 
of the agaricus have fo fliort an exiftence, 
that from the time of their appearance to 
the time when they begin to decay, is not 
more than five days, The manner in which 
many of them decay, is by their gills diflblv- 
ing into a very black liquor, like ink, that, 
dropping., carries with it the feed ; which 
may be feen in the liquor, if greatly magni- 
fied. The ftructure of one of this genus fhould 
be inveftigated, as it is the mofl numerous of 
the fungus tribe, and, if well underftood, 
will bring the ftudent acquainted with the 
boletus, and other genera of this order. The 
agarics are compofed of a pileus, or hat with 
gills underneath, and with or without ftipes 
or ftems, the pofition of the ftipes being 
either central or lateral ; from which arife 
the three firft divifions of the genus; they 
have alfo a root, more or left obvious ; and 
3 fqme 
