Leo Schordje
wilted blossom
If you consider villosum, boxalii & gratrixianum all part of Paph villosum then most of the 'Bulldogs' really owe their look to villosum as much or more than they do to insigne. Paph villosum is certainly the source of much of the way color is distributed in modern complex hybrids. There were a few polyploid villosum clones that may have been used in the past also, I think? villosum 'Loydds' was one such polyploid, though I am not near any of the referrence books I could consult, so I might be in error on which clones were polyploid. The right sequence of select villosum, with a shot or two of charlesworthii, over the course of several generations, may give very nice reds. As Paul says, showing Paph hybrids was a very competitice sport in its day and not disclosing the actual parentage was a way to keep the competition off your trail in the race for more RHS awards.