Shared by the tree and the flat ICellRanges listing, so the two cannot label the same member differently — the flat list is the tree's rows without the hop structure, and a reader comparing them is comparing the same text.
A name member leads with its NAME: its address is only an anchor, and two names authored from the same cell would otherwise print as identical, anonymous cells.
The address comes back unqualified. A listing standing on one sheet says so once, in its
heading; a qualifier goes back on every row only when the collection spans sheets, which is the
caller's decision because only the caller has seen every member. A trailing ! is #REF!, not
a qualifier, so it is left whole.
How a graph member LABELS itself: its address, the sheet it lives on, and whether it is a name.