i am curious as to what species are epiphytic in nature. im growing U. nephrophylla, U. asplundii, and U. reniformis as what would consider epiphytes. a layer of LFS over a layer of quick draining medium(orchid bark and perlite). basically simulates a layer of moss growing on a tree branch i think. anyways i keep the moss barly damp most of the time with occational short really wet spells and short dry spells. any other species that would grow this way? the nephrophylla and asplundii really seem to like it. the reniformis hasnt shown marked improvement i potted it like this but it hasnt went down hill really either and it hasnt been that long since being potted up.