Very nice.
I had to google the parentage, as I´m not experienced in hybrids.
It´s spicerianum x Leeanum, Leeanum is spicerianum x insigne
Best regards, Gina
Nice! Looks like a massive spicerianum. What are the insigne features on this flower? Does the size come from line-breeding, or are all Brunos this big?
I'm curious to know where the size comes from, then. Neither of the parents have wide, flat dorsals, so how can all Brunos have that characteristic? Just curious.