I have noticed mutated leaves on a number of Camellias this Winter/ Spring. They are sort of cupped and attached to other leaves and some are curled as though the mid rib is shortened. At first I thought they were galls, but they don't seem to have spores or the usual colouring that I've seen on other leaf galls. Does anyone know what this might be? The plants are otherwise healthy and flowering. They are also in very different environments.