PLANTS. 213 



CLASS 8. OCTAXDRIA eight stamens Bibbery, etc. 

 " 9. EXEANDRIA nine stamens Laurel 

 " 10. DECANDRIA ten stamens Gilliflower, Rue. 

 " 11. DODECANDRIA with from twelve to nineteen stamens Mig 



nionette. 

 " 12. ICOSANDRIA twenty or more stamens, inserted on the calyx 



Apple, Rose. 

 " 13. POLYANDRIA stamens twenty and upwards, inserted on the 



receptacle Poppy, Linden. 



These orders are characterized by the number of the 

 pistils. Also by one, two, or more stigmas. 



2. The stamens free and of unequal lengths. 



CLASS 14. DIDTNAMIA four stamens, two longer than the others 

 Lion's Mouth, and distinguished by having the seed free or 

 covered. 



" 15. TETRADYNAMIA six stamens, four longer than the others 

 Cress, Stock, Gilliflower, etc. 



This order is determined by the size of the seed-pod. 



3. The stamens adherent to each other in one fascicle. 

 a Adherent with one another, or to the pistil, in two 



fascicles. 



CLASS 16. MONADELPEIA filaments united Mallow. 



" 17. DIADELPHIA stamens divided into two bundles Butterfly 



Weed, or Aselipias. 

 " 18. POLYDELPHIA several bundles of stamens adherent St. 



John's-wort. 



These orders were arranged according to the number 

 of their stamens. 



a Anthers adherent ; stamens free. 



CLASS 19. SYXGENESIA five stamens, united by their anthers ; flowers 

 collected into a common involucre or envelope Lettuce, 

 Thistle. 



This class is determined in proportion to its fertility. 



