Juniperus media does not appear a current name, certainly not to the RHS,

Where did they put things like 'Pfitzer's' and 'Blaauw'? What is the rationale
behind not accepting J. xmedia?

Iris,
Central NY, Zone 5a, Sunset Zone 40
"The trouble with people is not that they don't know but that they know so much
that ain't so."
Josh Billings (Henry Wheeler Shaw), 1818-1885