This is the plant I got from Hadley that I said disappointed me with the lack of color depth. I would like to see more reds reappear in the future, but it's growing on me anyway.
Ray is probably talking about the pouch and the backside of the dorsal when he talks about color saturation. The backs of the petals can be very dark as well giving the front side deeper coloring.
Jean-Pierre: Do you find that longifolium and it's hybrids are especially affected by cooler temperatures?