  We consider the Brownian tree introduced by Aldous and the associated
Q-process which consists in an infinite spine on which are grafted independent
Brownian trees. We present a reversal procedure on these trees that consists in
looking at the tree downward from its top: the branching points becoming leaves
and leaves becoming branching points. We prove that the distribution of the
tree is invariant under this reversal procedure, which provides a better
understanding of previous results from Bi and Delmas (2016).
