If the bonus is typed, it means that it is stated what kind of bonus it is. If you get a +2 morale bonus, that bonus is typed and it will not stack with any other morale bonus. Thus if you have two different morale bonuses, they are not cumulative. Or more generally, if two bonuses have the same type, they are not cumulative.
+2 bonus, is untyped as it doesn't state what kind of bonus it is and all untyped bonuses stack, or are cumulative.