178 TABULAE AEEANGEMENT. 



reproduction, since their seeds, being destitute of capsules, 

 receive directly the action of the fecundating substance ; 

 and from which they are also distinguished by the organisa- 

 tion of their stems, which differ in many respects from those 

 of true dicotyledons. 



" Finally, the fifth and six classes are formed of phanero- 

 gamic monocotyledons and dicotyledons, as they are defined by 

 all botanists, omitting only the two families composing the 

 preceding class. 



" If, on the one hand, the above arrangement presents 

 but little uniformity in the relative extent of the six grand 

 primary divisions here described, three of them, the agamies, 

 the monocotyledons, and dicotyledons, comprising a consider- 

 able number of families, genera, and species, while the 

 remainder, in particular the fourth, include only a very 

 limited number ; on the other hand, we preserve a far more 

 essential uniformity in the importance of the characters ; 

 the groups which we obtain are, moreover, perfectly natural, 

 and we do not meet with those contradictory disparities 

 which it is impossible to avoid in dividing the vegetable 

 kingdom only into three grand classes." 



We subjoin a tabular arrangement of the various families 

 which compose the classes above mentioned. 



CLASS L AGAMIC. 



1st Family. 

 2nd Family. 



CLASS II. CELLULAE CETPTOGAMI^E. 



3rd Family. MOSSES AND LIYEEWOETS. 



CLASS III. YASCULAE CEYPTOGAMLE. 



4th Family. EQTJISETACE^!, the horse-tail tribe. 



5th Family. FEENS. 



6th Family. MAESILIACE^, the pepperwort tribe. 



7th Family. CHAEACE^I, the chara tribe. 



8th Family. LYCOPODIACE.E, the club mosses. 



