Figure 4

Inferred species trees. The set $\mathcal{G}\left(T,t,\sigma \right)$ inferred from the event labeled gene tree (T,t, σ) does not necessarily define a unique species tree. For clarity of exposition, we have identified, via the map σ, the leaves of the gene tree and of the set of triples $\mathcal{G}\left(T,t,\sigma \right)$ with the species they reside in.