60 



CHAPTER VIII. 



EXPOSITION OF THE NATURAL SYSTEM OF JUSSIEU. 



JL HE Classes are 15, not distinguished by any par- 

 ticular appellations. One of them is Acotyledonous 

 (90, 91) ; three are Monocotyledonous (88) ; the re- 

 maining eleven Dicotyledonous (89). 



The Orders are 100, distributed in natural series 

 under every Class, and each defined by rather full 

 definitions, taken, in the first place, from the parts of 

 Fructification (52), and illustrated by secondary cha- 

 racters, founded on any other circumstance, 



The Genera stand, in one or more sections, accord- 

 ing to their respective affinities, and with their Essen- 

 tial Characters (104) under each Order, at the end 

 of which are usually many valuable critical remarks. 



There is at the end a very large assemblage of 

 Plant a. inccrtce sedis; Genera not reducible to any 

 of these Orders. These are, for convenience, artifi- 

 cially arranged, by the Corolla (whether monopetalous, 

 polypetalous, or wanting), the situation of the Ger- 

 men, and the number of Styles and Stamens. Many 

 of the Genera have subsequently been reduced to their 

 proper Orders. 



