Hawthorn gall(s)

Hawthorn gall(s)

Observation - Hawthorn gall(s) - UK and Ireland. Description: Noticed a bulge on a hawthorn leaf. I photographed it and turned the leaf over. In the second phot you can see the hollow underside of the gall, as well as a deformity or leaf roll gall at the side of the leaf as well. Are they galls?

Noticed a bulge on a hawthorn leaf. I photographed it and turned the leaf over. In the second phot you can see the hollow underside of the gall, as well as a deformity or leaf roll gall at the side of the leaf as well. Are they galls?