Not a dischidia, but an unusual hoya that can be grown as a total epiphyte like a dischidia....just recently found what is left of my 'used-to-be' fairly substantial Hoya kanyakicariana. This little piece was still clinging to a mossed tree fern slab that had fallen out of something. It is making a comeback, leaves no longer withered up and yellow, getting greener and fatter. Once it puts on some bulk will remount it and hang it. Its currently sharing space with a couple of back bulbs of an unidentified Bulbophyllum orchid