EXPLANATION OF THE PLATES. 



Plate CCCLXXL Quercus macrocarpa 



1. A flowering branch, natural size. 



2. A staminate flower, enlarged. 



3. A pistillate inflorescence, enlarged. 



4. A pistillate flower, enlarged. 



Plate OCCLXXIL Quercus macrocarpa. 



1. A fruiting branch, natural size. 



2. A fruit, natural size, 



3. A fruit, natural size. 



4. A fruit, natural size. 



5. A winter branchlet, natural size. 



Plate CCCLXXIII. Quercus macrocarpa. 



1. A branch with immature fruit, natural size 



2. A fruit, natural size, 



3. A fruit, natural size. 



4. A fruit, natural size. 



5. A fruit, natural size. 



6. A leaf, natural size. 



7. A leaf, natural size. 



