Smithsonian Report, 1948.—Ryan and Cooke PLATE 2 
a 
1. THE LARGEST GROVE OF MATURE CORK OAK TREES IN THE UNITED 
STATES, CHICO, GALIF. 
These trees supply many acorns every year for additional plantings. 
2. A TRUCKLOAD OF ACORNS OF THE CORK OAK 
Hundreds of thousands of cork acorns like these are collected and distributed annually throughout the 
warmer half of the United States. 
