204 JUSSIEU'S NATURAL SYSTEM. 



the thirty-first to the thirty-fourth ; viz. muftacea, amo- 

 mea:, orchidete and hydrocharidece. 



31. M us, ,(,-.. Mnsa. 



32. Amomea: Amomum. 



33. Orchideze Orchis. 



34. Hydrocharideae Hydrocharis. 



HI. DICOTYLEDONOUS PLANTS. 



SEEDS WITH TWO OR MORE COTYLEDONS. 



17. This division includes plants, the seeds of which, 

 have two, if not more, cotyledons. They are of a very 

 complex organization, and form, at least, four-fifths of 

 the vegetable kingdom. 



Dicotyledonous plants, in consequence of their number, are first 

 divided into three sets, according to the petals of the flower ; hence 

 some are called apelalous, a second set tnonoprtalous, and a third 

 series polypetalous. There is also a fourth class, constituting the 

 last or fifteenth. 



AI'ETALOUS DICOTYLEDONES. 



18. Dicotyledonous plants with no petals. Divided 

 into three sets or classes, founded on the situation of 

 the calyx, viz. epicalycia', pericalycia and hypocalycia. 



CLASS V. EPICALYCIjE. 



19. The plants of this class, or we should rather 

 say, of this order, are of course apetalous dicotyledones, 

 in addition to which, they have the distinguishing cha- 

 racter of a single pieced calyx, epigynws or superior to 

 the germen. 



