YW, 'twas educational for me too - in a pump-up-the-wish-list kind of way! If you can find a source of pics of more species of Cissus, you may find the right one if nobody who happens to know pops by this discussion. If you do find tons of pics somewhere, I'd love to see them too! So few really pretty vines grow in the shade, though knowing about them doesn't make them any more available.