This is part of a set of changes to recognize Sceptridium (grape ferns) at the generic level rather than as a subgenus of Botrychium (moonworts). Two of our three US sources (Calflora and Weakley) recognize this group at generic level; Go Botany is the outlier. PPG I, the most recent global classification for ferns, also recognizes Sceptridium as a genus.
Unintended disagreements occur when a parent (B) is
thinned by swapping a child (E) to another part of the
taxonomic tree, resulting in existing IDs of the parent being interpreted
as disagreements with existing IDs of the swapped child.
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.
