OK, I know that mistakes in naming/taxonomy are frequent, especially from smaller nurseries and hobbyists, but I've run into lots of normally reliable sources that seem to disagree about this topic. So, if you understand my questions and have good answers, I'd REALLY appreciate some input!

1. What (very specifically/technically and taxonomically speaking) does Ilex x meserveae represent? (a nothospecies, etc)(simply "a hybrid cross between I. aquifolium and I. rugosa" isn't what I'm looking for here).

2. Are holly cultivars like 'Mesdob', and other cultivars that don't result from crosses and backcrosses only between I. aquifolium and I. rugosa, really members of Ilex x meserveae?

3. How does "Ilex x meserveae" fit into ICBN/ICNCP naming schemes?

* Please assume that the x between Ilex and meserveae is a multiplications symbol.