I want to create a List of coroutines to start if future. How to store such functions inside a list?

Say we have a function like:

IEnumerator Example() {
    while (true) {
        yield return  new WaitForFixedUpdate();
    }
}

We cant store it inside something like `List> list` but we get compiler error like:

Error   1 The best overloaded method match for 'System.Collections.Generic.List<System.Func<System.Collections.IEnumerator>>.Add(System.Func<System.Collections.IEnumerator>)' has some invalid arguments

when we call

           list.Add(Example);

or if we use `List list` we get no compile errors but on

            if (disposeActions.Any()) {
                yield return StartCoroutine(list[0]); //here we get null exception
                disposeActions.RemoveAt(0);
            }

So I wonder how to create a list to store IEnumerator functions and be capable to send its items to coutines?