EXPLANATION OF THE PLATES. 



Plate CCCXLIV- Hicoria aqtjatica. 



1. A flowering branchj natural size. 



2. A staminate flower, front view, enlarged. 



3. A staminate flower, rear view, enlarged. 



4. A stamen, enlarged. 



5. A pistillate flower, lateral view, enlarged 



6. A winter branchlet, natural size. 



Plate CCCXLV. Hicoria aquatica 



1. A fruiting branch, natural size. 



2. A fruit, natural size. 

 3- A nut, natural size. 



4. Cross section of a nut, natural size. 



5. A nut, natural size. 



6. A leaf, natural size. 



