( n ) 
by the form of their feed-vefTels ; the whitlow* 
grafs (draba) is a fpecimen of the firft order ; 
it's feed-veffel being a Silicle refers it to that 
divifion. The feed of purple rocket (hefperis) 
being contained in a filique, that genus be* 
longs to the fecond order. We find in the 
clafs Tetradynamia many of our efculent ve- 
getables ; fome of which, as the water-crefs 
(fify'mbrium) and muftard (fmapis), are ufed 
without having gone through the procefs of 
cookery; others are rendered mild by boiling, 
as cabbage, turnep, brocoli, cauliflower, and 
fome others, all of which are the produce of 
cultivation from one genus, Braffica* The 
change produced in vegetables by the art of 
gardening is a part of the fubje6t of botany 
highly curious and amufing. 
The flowers of the three clafles, Monadel- 
phia, Diad&phia, and Polyadelphia, one bro- 
therhood, two brotherhoods, and many 
brotherhoods, are now to be confidered* 
The characters of thefe claffes are ftrongly 
marked : the geranium and mallow are fpe- 
cimens of the Monadelphia clafs; in attempt* 
ing to take off the ftamens, that union of the 
filaments from whence the name of One 
Brotherhood is derived, may be diftinftly 
feen j 
V 
