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.

I had seen so many contradictions that I thought maybe there was something I was missing.

Ilex x meserveae is a nothospecies name containing only crosses (and backcrosses) between I. rugosa and I. aquifolium. Cultivars with any other parentage, like Ilex 'Mesdob' (aka China Boy), are not members of Ilex x meserveae. Sources like The Holly Society of America, The Morton Arboretum, Bernheim Arboretum, The University of Illinois, UConn, Monrovia, and hundreds of nurseries (at least in some of their documents) have it wrong.