( 1* ) 
and ufeful, and from which benefit will be 
derived to mankind to the lateft ages. 
In fome genera belonging to the clafs Po- 
lyadelphia the character of many brotherhoods 
Is clearly defined, in others it is lefs obvious ; 
in the genus Hypericum, St. John's- wort, it 
is eafy to take off" the ftamens in diftindt little 
bunches. In the orange, lemon, and citron* 
all of the genus Citrus, the appearance of the 
ftamens differs fo much from that of the Hy- 
pericum that a young botanift would not 
iiippofe them to be of the fame clafs. How- 
ever, on inveftigation, the ftamens will be 
found feparated into fmall bunches, fo as to 
entitle the family to a place among the many 
brotherhoods. 
The moft intricate clafs in the whole fyf- 
tern muft now be confidered : the curious 
and beautiful conftru&ion of the flowers con- 
tained in it will, however, amply repay the 
labours of the ftudent. The clafs Syngenefia, 
confederate males, or united anthers, is 
founded on the very peculiar fituation of the 
anthers, which are joined together in the 
form of a cylinder, while the filaments remain 
feparate, A flight preffure at the top of this 
cylinder of anthers caufes the filaments to 
bend 
