  We describe varieties of minimal rational tangents on the wonderful symmetric
varieties by marked Dynkin diagrams. An irreducible component of a variety of
minimal rational tangents is a rational homogeneous space, and hence, we have a
corresponding marked Dynkin diagram expression. On the other hand, we have
marked Dynkin diagrams from the marked Kac diagram of a irreducible symmetric
space by marking adjacent nodes to the marked node. We note that the above two
diagrams coincide when the restricted root system is not of type A.
