Héctor J. Tapia, María Luisa Bárcenas-Argüello, Teresa Terrazas, Salvador Arias (2017); Phylogeny and Circumscription of Cephalocereus (Cactaceae) Based on Molecular and Morphological Evidence (連結)
Identification
ID 2 of taxon E will be an unintended disagreement with ID 1 of taxon B after the taxon swap
If thinning a parent results in more than 10 unintended disagreements, you
should split the parent after swapping the child to replace existing IDs
of the parent (B) with IDs that don't disagree.