100 GENERA OF CLASS XVIII. POLYADELPHIAc 



CHAP. XXI. 



OF THE EIGHTEENTH CLASS, POLYADELPHIA. 



THIS class consists of such plants as bear bisexual flowers, fur- 

 nished with many sets of united stamina ; the flowers have no par- 

 ticular character farther than is expressed in the title. The or- 

 ders are four, including eleven genera, viz. 



Order I. Decandria, comprehending such plants as have- ten 

 stamina in each set. Of this order there^ is only one genus, viz. 

 Theobroma (chocolate). 



Order 2. Dodecandria, comprehending such plants as have 

 twelve stamina in each set. Of this order there are two genera, 

 viz. Bubroma..»Abroma. 



Order 3. Icosandria, comprehending such plants as have 

 twenty stamina in each set. Of this order there are two genera, 

 viz. Citrus (orange and lemon),., and Melaleuca. 



Order 4. Polyanpria, comprehending such plants as have 

 many stamina in each set. This order contains six genera, viz. 

 Hypericum. ».Ascyrum,,.Symplocos...Durio,..Glabraria... and 



Luhea. 



