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Galls are structures budded out from stems, leaves, or other pats of plants. Galls are made by insects for the protection of their young or immature larvae. Pictured is the oak apple gall, about two thirds its natural size. Also pictured is the young root of oak bearing galls.

Oak Galls

Galls are structures budded out from stems, leaves, or other pats of plants. Galls are made by insects…

Galls are structures budded out from stems, leaves, or other pats of plants. Galls are made by insects for the protection of their young or immature larvae. Pictured is a cluster of galls and an oak twig with two galls.

Oak Galls

Galls are structures budded out from stems, leaves, or other pats of plants. Galls are made by insects…

Pictured are oak spangle galls. The galls are on a lower surface of a leaf, removed from a leaf, the flat section, and transverse sections. Also pictured are currant galls of oak.

Oak Galls

Pictured are oak spangle galls. The galls are on a lower surface of a leaf, removed from a leaf, the…

A pictures galls on the lower surface of an oak leaf. B picture galls on a young twig.

Oak Galls

A pictures galls on the lower surface of an oak leaf. B picture galls on a young twig.

A pictures the silky button galls of oak. B pictures blister galls of oak leaves.

Oak Galls

A pictures the silky button galls of oak. B pictures blister galls of oak leaves.