The rules for deducing template arguments when taking the address of a function template in 13.10.3.3 [temp.deduct.funcaddr] do not appear to allow for a base-to-derived conversion in a case like:

  struct Base {
    template<class U> void f(U);
  };

  struct Derived : Base { };

  int main() {
    void (Derived::*pmf)(int) = &Derived::f;
  }

Most implementations appear to allow this adjustment, however.