It is interesting how the charlesworthii mark is only in pouch and petal color and a slight brushing of the dorsal. I done a sib cross to see if I can bring out more of the charlesworthii dorsal. Time will tell.Fine growing indeed! The wierdness of hybridization: whatever happened to the charlesworthii dorsal?
Been looking at the picture again.
Sometimes a plant will "do" a selfing. P. lowii is notorious, I believe the word is autogenus (not sure on the spelling!!)
It looks very like a barbigerum which is why the charlesworthii does not appear??