OF JUSSIEU. 195 



almost inclined to revert to the idea of Linnaeus, that 

 we are not competent to define technically any na- 

 tural orders, without so many, and such paradoxical, 

 exceptions, as to destroy all consistency. The labours 

 of his successors too often illustrate and confirm this 

 opinion, by their failure in the details of the subject. 

 The learned and candid DeCandolle, (who first has 

 claimed, from the botanists of his own school, the 

 honours due to Linnaeus, relative to the principles of 

 natural arrangement, TheorkElem. p. 60 &c.,) though 

 he has successfully defined several Orders, is obliged 

 to have recourse to an artificial distribution of them, 

 which I have mentioned above, and to which the fol- 

 lowing is the key. 



Class 1. Dicotyledonous. Corolla polypetalous, hypogynous. 



2. ■ ■ perigynous. 



3. Corolla monopetalous, perigynous. 



4. ' hypogynous. 



5. - Flowers apetalous, or with one in- 



tegument only. 



6. Monocotyledonous. Flowers phasnogamous. 

 7 '• • cryptogamous. 



3. Acotyledonous. Leafy, and with Organs of impreg- 



nation. 

 9« Without leaves, or any known Or- 

 gans of impregnation. 



The able author proposes this method, as less at 

 variance, than any other, with natural affinities, but 

 still as serving merely for convenience, nor does he 

 attach to it any further importance. 



o 2 



