EXPLANATION OF THE PLATE. 



Plate CCCCXL Quercus Texaka. 



1. A flowering branch, natural size. 



2. A staminate flowerj enlarged. 



3. A pistillate flower, enlarged. 



4. A fruiting branch, natural size. 



5. A fruit from the valley of the Pecos River, 



natural size. 



6. A fruit from near the mouth of White River, 



Illinois, natural size. 



7. A leaf from western Texas, natural size. 



8. A winter branchlet, natural size. 



