Valley Oak Leaf Galls

Valley Oak leaf galls
Leaf galls, Valley Oak, Columbia Ca, August 2014

 

The ruler markings in the following picture are millimeters. These are small galls.

Valley Oak leaf galls with ruler
Valley Oak leaf galls. Columbia CA August 2014

 

This Valley Oak leaf has two species of leaf galls: The two red, dunce-cap galls, on the right, and the small round gal on the left.
This Valley Oak leaf has two species of leaf galls: The two red, dunce-cap galls, on the right, and the small round gal on the left.
Oak Leaf Galls
Duncecap galls, Valley Oak, Columbia California, 21 August 2014
Valley Oak Leaf galls
DunceCap leaf galls from Valley Oak, Columbia CA. August 21, 2014.

 

 

 

 

 

 

 

 

This is a closeup of the small round gall on the valley oak leaf
This is a closeup of the small round gall on the valley oak leaf