UMLR — orthogonal State missing on bullet point list

On page 322 there is a bullet point list

• simple State (isSimple = true)
• composite State (isComposite = true)
• submachine State (isSubmachineState = true)

The entry

• orthogonal State (isOrthogonal = true)
  is missing (but mentioned in the following paragraph).
  It is a special kind of composite State, so this could be a reason to leave it out from the list. However, I think it is distinct enough from the other three, and is even given a derived property, so it probably should also be in the list.