DIVISION I 



EXOGENS, OE DICOTYLEDONS. 



Class L of the Exogens : Angiosperms, consisting of 

 three sub-classes — that is, the Polypetalous, Gamopetalous, 

 and Apetalous Exogens. 



SUB-CLASS Z 

 Polypetalous Exogens. 



ORDER I. 



EANiriirCULACBiE, OE CE0WF00T8. 



Geneea : 



1. Atragene, Sims, represented by the species: 



Atragene Americana, Sims. 

 {Clematis verticillaris, D.C.) 



2. Clematis, L. Virgin's Bower. Species 5. 



3. Pulsatilla, Tourn. Pasque-Flower. Species : 



JPulsatilla Mittalliana, Gray. 

 (Aiiemone, D.C.) 



4. Anemone, L. Anemone. Wind-Flower. Species 6. 



5. Hepatica, Dill. Liver-Leaf. Species 2. 



6. Thalictrum, Tourn. Meadow-Eue. Species 3. 



