53' 



Class V. Pentandria 



" VI. Hexandria 



" VII. Heptandria 



VIII. Octandria 

 " IX. Enneandria 



" X. Dccandria 



" XI. Dodecandria 



" XII. Icosandria 



XIII. Polyandria 

 b. Stamens of different lengths ; 

 Class XIV. Didynamia " 

 " XV. Tetradynamia " 



2. Stamens united. 

 a. By filaments : 

 Class XVI. Monadelphia " 

 « XVII. Diadelphia « 

 « XVIII. Polyadelphia « 

 h. By anthers (compound flowers) : 

 Class XIX. Syngenesia " 

 XX. Gynandria 

 II. Stamens and pistil in different flowers. 



1. On the same plant: 

 Class XXI. Monoecia. 



2. On different plants : 

 Class XXII. Dioecia. 



III. Stamens and pistils in the same or in different flowers, on the same or on different 

 plants: 

 Class XXIII. Polygamia. 

 B. Cryftogamia (flowers absent) : 

 Class XXIV. Cryptogamia. 



two sliort and two long stamens, 

 two short and four long. 



stamens in one bundle. 

 " in two bundles. 

 " in more than two bundles. 



united by anthers, 

 and pistil on a column. 



Tabular Vieio of the Orders of the Linnccati Si/stem. 



A. Classes I to XIII 

 Order 



subdivide into : 



with one 

 " two 



1. Monogynia with one free style. 



" 2. Digynia " two " styles. 



" 3. Trigynia " three " " 



" 4. Tetragynia " four " " 



" 5. Pentagynia " five " " 



" 6. Hexagynia " six " " 



" 7. Heptagynia " seven " " 



" 8. Octogynia " eight " " 



" 9. Enneagynia " nine " " 



" 10. Decagynia " ten " " 



" 11. Dodecagynia " 12 to 19 " " 

 " 12. Polygynia " 20 or more" " 



B. Class XIV. subdivides into : 



Order 1. Gymnospermia with the fruit formed by four Achaenia. 



" 2. Angiospermia " " " a two-celled capsule with many seeds. 



C. Class XV. subdivides into : 



Order 1. Siliculosa: fruit, a Silicula. 

 " 2. Siliquosa : fruit, a Siliqua. 



D. Classes XVI. to XVIII. subdivide into : 



Orders: Triandria, Tetrandria, Decandria, &c., according to the number of 

 stamens. 



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