Rick can you discribe the ovary and stem as far as, hairy, not hairy, long? short? How about the color? Your posting shows on my screen a deep green background color with dark brown/purple overlay. With P. hirsutissimum v. esquirolei, I think of a more yellowish/light brown background color with the brown/purple overlay.
And what about the plant itself? P. hirsutissimum that I've had in the past were difficult to bloom here in TX. I would get bud sheaths in the fall, set there all winter, make a move in early spring and blast because it got too hot too fast. Also, the leaves of P. hirsutissimum were darker green, wider and softer or less substance to then in comparison to esquirolei.
I guess what is really on my mind is this, are there really two separate species and P. hirsutissimum is so rare in cultivation these days that esquirolei is getting all the "credit" for both type discriptions and that the name P. hirsutissimum v. esquirolei is being slapped on any ole plant without solid evidence. Of course the name itself is being used haphazardly, either the whole name , the first half or the second half without regard to the true nature of the plant. Or is there just one species and name is still being thrown a round with disregard?
It stands to reason, that way back when varity esquirolei was discoveried, that somebody had P. hirsutissimum in one hand and esquirolei in the other and said "there is a difference so we'll call this varity esquirolei" Why else keep both names?
A rambling slipper fool,
Rick H