, 12 The Rev. P. Keith on the Classification of Vegetables, 



adapt the system of Jussieu to the present state of botanical 

 knowledge without innovating upon its principles, in external 

 appearance at least, our reply would be, that availing ourselves 

 of whatever we may find in the works of the above-mentioned 

 authors, or of others, calculated to illustrate the character of 

 the groups, or to give perspicuity to the arrangements of 

 Jussieu, and retaining not merely the foundation but the iden- 

 tical structure which he reared upon it, we would venture to 

 add to it a trifle more of extension, or of filling up, in the style 

 and manner, as much as may be, of the original edifice, that 

 the masterly traits of the hand of the founder may never be 

 lost sight of. It will be seen that this adaptation can descend 

 no lower than to the distribution of classes. The orders and 

 their arrangement will be continually changing as long as there 

 shall remain new plants to be collected or new affinities to be 

 discovered, but we do not see the necessity of any violent al- 

 teration in the circumscribing of the larger groups. All that 

 we regard as necessary is comprised in the following tabular 

 sketch, giving, as we fancy, a neatness of outline to the higher 

 divisions of the system, by the formal introduction of a very 

 few distinctions that were either implied in it from the begin- 

 ning or rendered necessary by the progress of analytical re- 

 search. 



Vegetables, 



Giioupl. COTYLEDONOUS PLANTS.— Vascular with 

 spiral tubes ; — phaenoganious, — bisexual, — angiosper- 

 mous. 

 Divis. I. Dicotyledons. — Growth 

 ferential. 



Subd. I. Dichlamijtiece. — Floral envelope double, — a calyx 

 and corolla. 

 Sect. I. Polijpctalous, 

 Class I. Hypopetalae. 

 II. Peripetalae. 

 III. Epipetala?. 

 Sect. II. Monopetalous. 

 Class IV. Hypocorolla?. 

 V. Pericorollae. 

 VI. Epicorolla}. 



1. Synanlheras. 



2. Corisantherae. 



Stibd, 11. MonocJdamydecc. — Floral envelope single,— a 

 perianth or presumed calyx. 

 Sect. I. Apetalous. 



Class VII. Hypostamineae. 



