Agaricus praeclaresquamosus A.E. Freeman, 1979, is a replacement name in Agaricus for Psalliota meleagris Jul. Schäff. 1925 because of the competing synonym A. meleagris With. 1792.
It is pre-dated by the heterotypic synonym Agaricus moelleri Wasser, 1976, Type Denmark. Thus A. moelleri is the correct name for this European species.
Likewise Agaricus placomyces var. meleagris, also based on Psalliota meleagris, is another synonym of A. moelleri.
The name A. placomyces is misapplied in the USA for the taxon correctly called Agaricus deardorffensis - in California at least.
unknown
Added by cooperj on January 24, 2022 06:31 AM
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Committed by cooperj on January 23, 2022
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.