12 ON SYSTEMS AND CLASSIFICATIONS. 



Christopher Kuaut has adopted Riviuus's method almost un- 

 changed, but in "some degree reversed. The classes he forms from 

 the number oi the petals, and his subdivisions he takes from their re- 

 gularity or irregularity. But he denied that there were any flowers 

 without a corol, or that there was such a thing as naked seeds. 



The system 01 Tournefort was for a considerable time the fa- 

 vourite system of all botanists, and it deserves particular attention. 



Herbce et suffrutices. 



1. Floribus mouopetalis campaniformibus. 



2 infuudibuliformibus et rotatis. 



3 auomalis. 



4 hsbiatis. 



5 polypetalis cruciformibus. 



6 . rosaceis. 



7 umbeilatis. 



8 caryophvilaeis. 



9. liliaceis. 



10 papilionaceis. 



J 1 . . anomaiis. 



1 2 flosculosis. 



13 semiflosculosis. 



14 radiatis. 



15. apcta!is et stamincis. 



16. Qui floribus carent et semine donantur. 



17. Quorum flores et fructus conspicui desiderantur. 

 Arbor es et frutices. Ar bores etfrutices. 



18. Floribus apetalis. 21. Floribus rosaceis. 



J 9- amentaceis. 22 papilionaceis. 



20 monopetaiis. 



The form of the corol, which Tournefort properly employs as 

 the ground work of his system, appears to make it very easy and 

 intelligible. But the figure of the corol is so various, that it is 

 often with difficulty described. Besides, some species of corol so 

 much resemble others, that they are not easily distinguished. It is 

 on this account chiefly that Tournefort's system is not used in these 

 days. The orders in his method are taken from the style and from 

 the fruit. When the germ is under the flower he says, "calyx 

 abiit infructum ;" when it is included in the flower he says, (l pis- 



