LESSON 33.] ARTIFICIAL SYSTEM OF LINNJEUS. 



107 



575. The twenty-four classes of Linnceus were founded upon 

 something about the stamens. The following is an analysis of 

 them. The first great division is into two great series, the Phce- 

 nogamous and the Cryptogamous, the same as in the Natural System. 

 The first of these is divided into those flowers which have the sta- 

 mens in the same flower with the pistils, and those which have not ; 

 and these again are subdivided, as is shown in the following tabular 

 view. 



Scries I. PH^NOGAMIA ; plants with stamens and pistils, i.e. with real 

 flowers. 



1. Stamens in the same flower as the pistils : 

 * Not united with them, 

 H- Nor with one another. 



w. Of equal length if either 6 or 4 in number. 

 One to each flower, Class 1 . 



Two 

 Three 

 Four 

 Five 

 Six 

 Seven 

 Eight 

 Nine 



" 



" 



" 



" 



2. 



3. 

 4. 



5. 



6. 



7. 



8. 



9. 

 10. 



Eleven to nineteen to each flower, 11. 



Twenty or more inserted on the receptacle, 12. 



" 



" 



" 



" 



Ten 



" 



on the calyx, 



w- -*. Of unequal length and either 4 or 6. 

 Four, 2 long and 2 shorter, 

 Six, 4 long and 2 shorter, 

 M- *- United with each other, 

 By their filaments, 

 Into one set or tube, 

 Into two sets, 

 Into three or more sets, 

 By their anthers into a ring, 

 * * United with the pistil, 



2. Stamens and pistils in separate flowers, 

 Of the same individuals, 

 Of different individuals, 

 Some flowers perfect, others staminate or* 



pistillate either in the same or in different 



individuals, 



Scries II. CRYPTOGAMIA. No stamens and 

 pistils, therefore no proper flowers, 



17* 



MONANDRIA. 

 DlANDRIA. 



TRIANDRIA. 



TETRANDRIA. 



PENTANDRIA. 



HEXANDRIA. 



HEPTANDRIA. 



OCTANDRIA. 



ENNEANDRIA. 



DECANDRIA. 



DODECAXDRIA. 



ICOSANDRIA. 



13. POLYANDRIA. 



14. DlDYNAMIA. 



15. TETRADYNAMIA. 



16. MONADELPHIA. 



17. DlADELPHIA. 



18. POLYADELPHIA. 



19. SYNGENESIA. 



20. GYNANDRIA. 



21. MONtECIA. 



22. DICECIA. 



23. POLYGAMIA. 



24. CRYPTOGAMIA. 



