LINNEAN CLASSES AND ORDERS. 49 



Pentatidria. Hexandria. Octandria. Decan- 

 dria. 



1. Pentandria.^ 



2. Hexandria: ex. Fumitory, (Fumaria,) and 



Corydalis.* 



3. Octayidria : ex. Milk-wort, (Polygala.)t 



4. Decandria : Flowers papilionaceous ; fruit a 



legume ; J subdivided thus : 



"Stamens all connected or monodelphous ; tube 

 frequently cleft above : 

 Ex. Broom, (Spartium) and Furze, (Ulex.) 



* Stamens diadelphous, that is, nine filaments 

 united and forming a membrane, which sur- 

 rounds the germ, the tenth distinct ; stigma 

 pubescent : 

 Ex. Bitter-vetch, (Orobus) and Vetch, (Vicia.) 



''Pod two-celled ; 

 Ex. Milk- vetch, (Astragalus.) 



• Natural order FuniariucetB. 



t Natural order Polygalea. 



X Constituting the natural order Leguminosce. 

 H 



