22 



INTRODUCTION. 



PLATE XII. 



THE CLASSES OR PRIMARY DIVISIONS OF THE SEXUAL SYSTEM. 



The reader is referred to the Analysis or general scheme of 

 this celebrated method, perfixed to the present work ; as 

 likewise to the explanation of each class in the Diction- 

 ary, under its respective title. 



Fig. 



13. Polyandria. 



14. Didynamia. 

 16. Tetradynamia. 



16. Monadelphia. 



17. Diadelphia. 



18. Polyadelphia. 



19. Syngenesia. 



20. Gynandria. 



21. Moncecia. 



22. Dicecia. 



23. Polygamia. 



24. Cryptogamia. 



Fig. 



1. Monandria. 



2. Diandria. 



3. Triandria. 



4. Tetrandria. 



5. Pentandria. 



6. Hexandria. 



7. Heptandria. 



8. Octandria. 



9. Enneandria. 



10. Decandria. 



11. Dodccandria. 



12. Icosandria. 



TH* ORDERS OR SECONDARY DIVISIONS OF THE 

 SEXUAL SYSTEM. 



Fig. 



1. The Order Monogynia, containing hermaphrodite flower* 



with one pistillum or female organ. 



2. Digynia, hermaphrodite flowers with two pis till a ; a, the 



pistilla detached from the flower. 



a. Trigynia, hermaphrodite flowers with three pistilla ; a, 

 the pistilla separated. 



4. Tetragynia, hermaphrodite flowers with four pistilla ; a, 



the pistilla separated. 



5. Pentagynia, hermaphrodite flowers with five pistilla ; a, 



the pistilla separated. 



6. Hexagynia, hermaphrodite flowers with six pistilla; a, 



the pistilla separated from the flower. 



7. Heptagynia, hermaphrodite flowers with seven pistilla; 



a, the pistilla detached from the flower. 



8. Decagynia, hermaphrodite flowers with ten pistilla; a, 



the pistilla separated. 



9. Dodecagynia, hermaphrodite flowers with twelve female 



organs. 



10. Polygynia, hermaphrodite flowers containing an inde- 



finite number of pistilla, or female organs. 



Fig. 



11. 



12, 

 13, 

 14 



15, 

 16, 



17, 

 18 

 19. 



20, 



21. 

 22. 

 23. 



24. 

 25. 

 26. 

 27. 



Gymnospermia, the name of the first order in tne 

 Didynamia, in which a represents a longitudinal sec- 

 tion of the flower, to display the four naked seeds in 

 the bottom of the calix. 



Angiospermia, the name of the second order in the class 

 Didynamia, containing such hermaphrodite flowers 

 with four stamina, two longer than the others, as 

 have their seeds contained in a vessel ; a, the 

 pericarp, or vessel. 



Siliculosa, the first order in the class Tetradynamia, 

 containing such flowers possessed of the classical 

 character, as have their seeds contained in a short 

 round pod ; a, the silicula, or pod, divided to shew 

 the seeds. 



Siliquosa, the second order in the class Tetradynamia, 

 containing such plants possessed of the classical 

 character, as have their seeds contained in a siliqua 

 or long slender pod, to each suture of which they 

 are alternately attached ; a, the siliqua. 

 Polygamia aqualis, the first order in the class Syn- 

 genesia ; a, a floret separated from the aggregate. 

 superfiua, the second order in the class Syn- 

 genesia : a represents a female floret in the 

 circumference or ray ; b, an hermaphrodite 

 floret in the centre or disk. 



fritstranea, the third order in the class Syn- 



genesia. 



necessaria, the fourth order in the clas 



Syngenesia. 



segregata, the fifth order in the class Syn- 

 genesia. 



a, a floret with its proper flower-cup de- 

 tached from the aggregate. 



Monogamia, the sixth order in the class Syngenesia; a, 

 representing a section of the flower, to exhibit the 

 union of the stamina by the anthera. 



{Tricecia, the third order in the class Polygamia, in 

 which hermaphrodite flowers are intermingled with 

 maid or female flowers, or both, on one, two, or 

 three plants. 



Filices, Ferns, the first order, 

 Musci, Mosses, the second order 

 Alga, Sea-weed, the third order 

 Fungi, Mushrooms, the fourth order 



P 1 



r> \ 



jrder, J 



in the class 

 Cryptogamia. 



