Beverly Erlebacher schreef
What happened to that splitter movement a little while back that was
going to raise up Persica, Armeniaca and other genera in a desperate
effort to make sense out of this very diverse yet closely interrelated
lot of stone fruits?

+ + +
They seem to be lying low, waiting for the molecular storms to abate. IIRC
the molecular stuff does recognize grouping within Prunus s.l. but they do
not conform exactly with earlier splits. Cerasus appears to belong together
with Laurocerasus and one other "old" genus (I forget which).

If these groups will ever be raised to the level of genus is a different
matter. Splits of large genera are not popular, just think of what happened
when Eucalyptus was split.
PvR