The student pilot was practicing touch-and-go landings with the flight instructor during gusting crosswind conditions. On the fifth touchdown, the tailwheel equipped airplane bounced and the student increased engine power. The airplane settled back down to a three-point landing. During the ground roll, the right wing lifted up and the instructor applied full right aileron, down elevator, and full right rudder control. The wing continued to lift, and the airplane began to turn left. The instructor applied full engine power as the airplane departed the runway. The left wing touched the ground and the airplane continued another 50 feet, rotating onto the right wing, and then nosing over. The airplane sustained substantial damage to the vertical stabilizer and both wings during the accident sequence. The pilot's reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation.