160 



ORIGINAL AETICLES. 



Tlie largest Orders are in the 



In the Northern States Eanunculacese is the ninth order, Labiata^ 

 the tenth. 



The Orders marked f are included in the nine largest of the Swiss- 

 Tertiary. It has been observed above that out of the nine largest 

 Japanese Orders, six were thus marked (ante, p. 178). 



The groups which especially characterize United States forest 

 vegetation, are Taxodium, Magnolias, Hickories, "Walnuts, Planeray 

 Negundo, Liriodendron, Maples, Oaks, &c. The largest Orders 

 (besides the four marked above) and characteristic Groups of the 

 Swiss Tertiary in the States are — 



* Includes Vaccinicte, Monotropeae, Pyroleae. 

 X Myiicacese in Southern States, 3 gen. 4 species. 

 „ Northern „ 2 „ 3 „ 



