EXPLANATION OF THE PLATES 



Plate CCCCVI. Quercus Wislizeni 



1. A flowering branch, natural size. 



2. A staminate flower, enlarged, 



3. A pistillate flower, enlarged. 



4. A fruiting branch, natural size. 

 6. A fruiting branch, natural size. 



6. A fruit, natural size. 



7. A fruit, natural size. 



8. An axillary winter-bud, enlarged. 



Plate CCCCVII. Quercus Wislizeni x Californica 



1. A fruiting branch, natural size. 



2. A winter branchlet, the leaves removed, 



natural size- 



