EXPLANATION OF THE PLATES. 



Plate CCCL. Hicoria alba. 



1. A flowering branch, natural size. 



2. A staminate flower, front view, enlarged. 



3. A stamen, enlarged. 



4. A pistillate flower, lateral view, enlarged. 



6. Vertical section of a pistillate flower, enlarged, 



6. A winter-bud, natural size. 



Plate CCCLI. Hicorla. alba. 



1. A fruiting branch, natural size. 



2. An oblong fruit, natural size. 



3. Cross section of a fruit, natural size. 



4. A nut, natural size. 



5. A nut, natural size. 



6. A nut, natural size. 



7. Vertical section of a nut, natural size 



