ON SYSTEMS AND CLASSIFICATIONS. 15 



5. Pentandria, 15. 'Fetradynamia, *> 



6. Hexandria, 16. Monadelphia, 



7. Heptandria, 17- Diadelphia, 



8. Octandria, 18. Pulyadelphia, 

 p. Enneandria, 19. Syngenesia, 



10. Decandria, 20. Gynandria, 



11. Dodecandria, 21. Monoecia, 



12. Icosandria, 22. Dioecia. 



13. Polyandria, 23. Polygamia, 



14. Didynamia, 24. Cryptogamia. 



From the first to the tenth class the stamens are numbered. To 

 the eleventh class belong all the plants that have from ten to nine- 

 teen stamens. To the twelfth class those plants which have many 

 stamens inserted in the calyx. The thirteenth class contains plants 

 that have a great number of stamens from twenty to one thousand 

 in one flower. The fourteenth consists of plants that have four 

 stamens in one flower, of which two are longer than the rest. In 

 the fifteenth class stand those which have six stamens, of which two 

 are shorter than the rest. The sixteenth class contains plants 

 whose filaments are connected and form a cylinder. In the seven- 

 teenth class stand those plants whose filaments are united in two 

 parcels. To the eighteenth class belong those plants whose fila- 

 ments are united in several parcels. In the nineteenth class stand 

 those plants whose anther ae are united in a cylinder. The twenti- 

 eth class consists of those plants whose stamens stand upon the 

 style; the twenty-first consists of flowers of different sexes, namely, 

 male and female on one plant ; the twenty-second, of male and 

 female flowers, but so divided that one plant bears only male 

 flowers, the other only female; the twenty-third has flowers of 

 both sexes and hermaphrodite flowers together, so that the plant 

 contains either male and hermaphrodite flowers or female and her- 

 maphrodite flowers. To the last class belong all plants whose 

 flowers are not visible to the naked eye, these are the Filices, Alusci, 

 Altja? and Fungi. 



The orders in most of the classes are taken from the style, in 

 some from the fruit, and in the last classes from the filaments. 

 From the first to the thirteenth class the orders are taken from the 

 style, viz. mortogynia where there is only one style in the flower, 

 two, three; four, &c. styled, (rft, tri, tetra, Sfc. polygyria), ac- 



