EXPLANATION OF THE PLATE. 

 Plate CLXXXI. Carta arkansana. 



1. A flowering branch, natural size. 



2. A staminate flower, front view, enlarged. 



3. A staminate flower, rear view, enlarged. 



4. A stamen, enlarged. 



5. A pistillate flower, enlarged. 



6. A fruiting branch, natural size. 



7. Cross section of a fruit, natural size. 



8. A nut, natural size. 



9. A winter branchlet, natural size. 



