( zoz ) 
feeds, when ripe* The hat of the agarics is 
leaft to be depended on ; it's Ihape is either 
conical, convex, flat, or hollowed; the top 
like a funnel. It is conftantly varying in the 
fame plant before expansion, but not very 
changeable in the fame fpecies, when it is 
nearly, or fully expanded. The colour of the 
hat is extremely uncertain, therefore can only 
be attended to as a mark of varieties. The 
vifcous juice on the hat and ftipe, which is 
feen in many agarics, differs, according to 
their fituation, or to the ftate of the atmo- 
fphere, fo much, that the fame fpecies will 
fometimes be found glutinous, and at other 
times perfectly dry. Some of the agarics 
contain a milky juice, more or lefs acrid: this 
circumftance is not conftant, it having been 
found in the agaricus rubefcens, and the 
agaricus csefareus, that plants equally vigorous, 
and in the fame fituation, will fome of them 
pour out milk in abundance on being 
wounded, while others will not exhibit any 
marks of it. 
Upon the principles here explained, the 
late Dr. Withering has given to the world an 
arrangement of the mngufes, from which the 
genera may generally be inveftigated. It muft 
be 
