( 6z ) 
four-powers, or the fifteenth" clafs, has fix fta~ 
mens, and is called the clafs of four-powers : 
thefe fix ftamens not being of an equal 
height, four being taller, and the two lower 
growing oppofite to each other. This clafs 
contains the crofs-form flowers, and is a really 
natural clafs. Linneus has admitted only one 
genus into it which can be at all' objected 
againft, that is the genus cleonie, in many 
fpecies of which there are more than fix 
flam ens, and thefe not in the regular propor- 
tion of length, which gives, the name of 
four powers to the clafs, fo that it feems that 
the family of eleome has no right to be ad- 
mitted into it, unlefs the affinity of it's nee- . 
taries to thofe of the crofs-form fiow T ers may 
be allowed a fufficient title. This clafs is di- 
vided into two orders, which are diftinguifhed 
by the form of their pericarps, or feed-veffels ; 
the firft order having it's feed-veffels of the 
Silicle kind, the fecond of the Silique ; the 
Silicle being. furnilhed with a fiyle, often the 
length of itfelf, the Silique with a ftyle fcarcely 
vifible.. The filicle of honefty, when mature, 
is a great ornament to the plant ; from its 
ftiining appearance, like white fattin, it has 
received it's botanical name of lunaria, or 
moon wort. 
