Thanks! I'm really starting to like these Formosae dens. I've got a Peng Seng about to bloom now anyday. I've also set a couple pods from selfing the tobaense blooms so we'll see how long those take to mature.
to my eyes, this looks like the Thailand strain from Doi Tung that xavier mentioned in the past in this forum . The vietnamese cruentum is different with more red in the lip , closer appearance to the suzukii from Vietnam highland