Shriveled

To collapse inward; to crumble.

"The plant shrivelled from lack of water."

To become wrinkled.

"His fingers were shriveled from being in the bath for too long."

To draw into wrinkles.

"The hot sun shrivelled the leaves."

Wrinkled because the volume has reduced while the surface area of the outer layer has remained constant.

"A prune is a shriveled plum."

Collapsed in size.