I have been guided by the hints given by the leartted 
Dr. J. E. Smith, in his excellent “ Introduction to Bo- 
tany.” The classes Dodecandria and Polyadelphia are 
entirely omitted, and their genera inserted in their pro- 
per places in the other classes.. Asarum next to Aris- 
tolochia, in Gynandria, Bejaria, Portulacca, Talinum, 
Calligonum, and Hypericum, in Polyandria. Hudso- 
nia next to Helianthemum, with which it is closely 
related in the same class, Decumaria, Lythrum, Cu- 
phea, and Agrimonia; in Icosandria. Halesia near 
Styrax, in Monadelphia. Euphorbia in Diclinia, where 
it forms; with its other genera, a natural as well as d 
Ciel order: The pines seme Dicis 
amens cob dee: The other gencta: of coe 
Moneecia, Dicecia, and Polygamia, having been re- 
ferred to their proper classes. The genus Diotis more 
properly belongs to Tetrandria, but had been omitted in 
that elass, Najas and Valisneria are genera of an 
order of this class, to which probably might be added 
all the Aroidee. How far these alterations may meet 
the approbation of those best quts to ana Y mere 
sin die Lint cline, Ortu T aee vénidsidiher 
than che family of the-Filices, according to the forma- 
tion of the plan of this work, which only included 
plants whieh either are, or can be cultivated. Tore 
orders, Musci, Algæ, and Fungi, will form a distinet - 
work from the present, and may appear at some future 
