400 LINNjEAN 



Linnaeus has a 6th Order in this Class, 

 named Monogamia, consisting of simple 

 flowers with united anthers ; but this I have 

 presumed to disuse, because the union of 

 the anthers is not constant throughout the 

 species of each genus referred to it, witness 

 Lobelia and Viola, while on the contrary 

 several detached species in other Classes 

 have united anthers, as in Gentiana, EngL 

 Hot. t. 20. These reasons, which show 

 the connection of the anthers of a simple 

 flower to be neither important in nature, 

 nor constant as an artificial character, are 

 confirmed by the plants of this whole Lin- 

 nsean Order being natural allies of others 

 in the 5th Class, and totally discordant, 

 in every point, from the compound synge- 

 nesious flowers. 



The Orders of the 20th, 21st and 22d 

 Classes are distinguished by the characters of 

 some of the Classes themselves which precede 

 them, that is, almost entirely by the number 

 of their Stamens ; for the union of the anthers 

 in some of them is, for the reasons just given, 

 of no moment. 



